关于字符串处理的代码片段代码,PHP代码库,德仔网

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【PHP】关于字符串处理的代码片段
作者:红薯 / 发布于2011/10/26/ 559
<div>
<h3><i>[代码]</i> 移除 HTML 标签</h3>
<div id="highlighter_868613" class="syntaxhighlighter  php">
<div class="bar                ">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_868613_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="423" />
<param name="_cy" value="423" />
<param name="FlashVars" value="highlighterId=highlighter_868613" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="0" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
<param name="BGColor" value="" />
<param name="SWRemote" value="" />
<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">1</td>
            <td class="content">"php variable">$text "php plain">= "php functions">strip_tags"php plain">("php variable">$input"php plain">, "php string">"""php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 返回 $start 和 $end 之间的文本</h3>
<div id="highlighter_787847" class="syntaxhighlighter  php">
<div class="bar      ">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_787847_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="423" />
<param name="_cy" value="423" />
<param name="FlashVars" value="highlighterId=highlighter_787847" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="0" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
<param name="BGColor" value="" />
<param name="SWRemote" value="" />
<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">1</td>
            <td class="content">"php keyword">function "php plain">GetBetween("php variable">$content"php plain">,"php variable">$start"php plain">,"php variable">$end"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">2</td>
            <td class="content">"php variable">$r "php plain">= "php functions">explode"php plain">("php variable">$start"php plain">, "php variable">$content"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">3</td>
            <td class="content">"php keyword">if "php plain">(isset("php variable">$r"php plain">[1])){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">4</td>
            <td class="content">"php variable">$r "php plain">= "php functions">explode"php plain">("php variable">$end"php plain">, "php variable">$r"php plain">[1]);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">5</td>
            <td class="content">"php keyword">return "php variable">$r"php plain">[0];</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">6</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">7</td>
            <td class="content">"php keyword">return "php string">''"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">8</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 将url转换成链接</h3>
<div id="highlighter_353242" class="syntaxhighlighter  php">
<div class="bar   ">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_353242_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="423" />
<param name="_cy" value="423" />
<param name="FlashVars" value="highlighterId=highlighter_353242" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="0" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
<param name="BGColor" value="" />
<param name="SWRemote" value="" />
<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">1</td>
            <td class="content">"php variable">$url "php plain">= "php string">"Jean-Baptiste Jung (http://www.webdevcat.com)""php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">2</td>
            <td class="content">"php variable">$url "php plain">= preg_replace("php string">"#http://([A-z0-9./-]+)#""php plain">, "php string">'<a href="http://www.catswhocode.com/blog/$1" style="font-size: 12px; vertical-align: baseline; background-color: transparent; margin: 0px; padding: 0px; color: #3777af; text-decoration: none; font-weight: bold">$0</a>'"php plain">, "php variable">$url"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 切分字符串为140个字符</h3>
<div id="highlighter_161334" class="syntaxhighlighter  php">
<div class="bar  ">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_161334_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="423" />
<param name="_cy" value="423" />
<param name="FlashVars" value="highlighterId=highlighter_161334" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="0" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
<param name="BGColor" value="" />
<param name="SWRemote" value="" />
<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">01</td>
            <td class="content">"php keyword">function "php plain">split_to_chunks("php variable">$to"php plain">,"php variable">$text"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">02</td>
            <td class="content">"php variable">$total_length "php plain">= (140 - "php functions">strlen"php plain">("php variable">$to"php plain">));</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">03</td>
            <td class="content">"php variable">$text_arr "php plain">= "php functions">explode"php plain">("php string">" ""php plain">,"php variable">$text"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">04</td>
            <td class="content">"php variable">$i"php plain">=0;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">05</td>
            <td class="content">"php variable">$message"php plain">[0]="php string">"""php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">06</td>
            <td class="content">"php keyword">foreach "php plain">("php variable">$text_arr "php keyword">as "php variable">$word"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">07</td>
            <td class="content">"php keyword">if "php plain">( "php functions">strlen"php plain">("php variable">$message"php plain">["php variable">$i"php plain">] . "php variable">$word "php plain">. "php string">' '"php plain">) <= "php variable">$total_length "php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">08</td>
            <td class="content">"php keyword">if "php plain">("php variable">$text_arr"php plain">["php functions">count"php plain">("php variable">$text_arr"php plain">)-1] == "php variable">$word"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">09</td>
            <td class="content">"php variable">$message"php plain">["php variable">$i"php plain">] .= "php variable">$word"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">10</td>
            <td class="content">"php plain">} "php keyword">else "php plain">{</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">11</td>
            <td class="content">"php variable">$message"php plain">["php variable">$i"php plain">] .= "php variable">$word "php plain">. "php string">' '"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">12</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">13</td>
            <td class="content">"php plain">} "php keyword">else "php plain">{</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">14</td>
            <td class="content">"php variable">$i"php plain">++;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">15</td>
            <td class="content">"php keyword">if "php plain">("php variable">$text_arr"php plain">["php functions">count"php plain">("php variable">$text_arr"php plain">)-1] == "php variable">$word"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">16</td>
            <td class="content">"php variable">$message"php plain">["php variable">$i"php plain">] = "php variable">$word"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">17</td>
            <td class="content">"php plain">} "php keyword">else "php plain">{</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">18</td>
            <td class="content">"php variable">$message"php plain">["php variable">$i"php plain">] = "php variable">$word "php plain">. "php string">' '"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">19</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">20</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">21</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">22</td>
            <td class="content">"php keyword">return "php variable">$message"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">23</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 删除字符串中的URL</h3>
<div id="highlighter_673882" class="syntaxhighlighter  php">
<div class="bar">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_673882_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="5080" />
<param name="_cy" value="5080" />
<param name="FlashVars" value="highlighterId=highlighter_673882" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="-1" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
<param name="BGColor" value="" />
<param name="SWRemote" value="" />
<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">1</td>
            <td class="content">"php variable">$string "php plain">= preg_replace("php string">'/\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|$!:,.;]*[A-Z0-9+&@#\/%=~_|$]/i'"php plain">, "php string">''"php plain">, "php variable">$string"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 将字符串转成SEO友好的字符串</h3>
<div id="highlighter_275982" class="syntaxhighlighter  php">
<div class="bar   ">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_275982_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="423" />
<param name="_cy" value="423" />
<param name="FlashVars" value="highlighterId=highlighter_275982" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="0" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
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<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
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<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">1</td>
            <td class="content">"php keyword">function "php plain">slug("php variable">$str"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">2</td>
            <td class="content">"php variable">$str "php plain">= "php functions">strtolower"php plain">(trim("php variable">$str"php plain">));</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">3</td>
            <td class="content">"php variable">$str "php plain">= preg_replace("php string">'/[^a-z0-9-]/'"php plain">, "php string">'-'"php plain">, "php variable">$str"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">4</td>
            <td class="content">"php variable">$str "php plain">= preg_replace("php string">'/-+/'"php plain">, "php string">"-""php plain">, "php variable">$str"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">5</td>
            <td class="content">"php keyword">return "php variable">$str"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">6</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 解析 CSV 文件</h3>
<div id="highlighter_860936" class="syntaxhighlighter  php">
<div class="bar ">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_860936_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
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<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">1</td>
            <td class="content">"php variable">$fh "php plain">= "php functions">fopen"php plain">("php string">"contacts.csv""php plain">, "php string">"r""php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">2</td>
            <td class="content">"php keyword">while"php plain">("php variable">$line "php plain">= "php functions">fgetcsv"php plain">("php variable">$fh"php plain">, 1000, "php string">",""php plain">)) {</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">3</td>
            <td class="content">"php functions">echo "php string">"Contact: {$line[1]}""php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">4</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 字符串搜索</h3>
<div id="highlighter_194847" class="syntaxhighlighter  php">
<div class="bar">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_194847_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="5080" />
<param name="_cy" value="5080" />
<param name="FlashVars" value="highlighterId=highlighter_194847" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
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<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">1</td>
            <td class="content">"php keyword">function "php plain">contains("php variable">$str"php plain">, "php variable">$content"php plain">, "php variable">$ignorecase"php plain">=true){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">2</td>
            <td class="content">"php keyword">if "php plain">("php variable">$ignorecase"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">3</td>
            <td class="content">"php variable">$str "php plain">= "php functions">strtolower"php plain">("php variable">$str"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">4</td>
            <td class="content">"php variable">$content "php plain">= "php functions">strtolower"php plain">("php variable">$content"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">5</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">6</td>
            <td class="content">"php keyword">return "php functions">strpos"php plain">("php variable">$content"php plain">,"php variable">$str"php plain">) ? true : false;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">7</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 检查字符串是否以某个串开始</h3>
<div id="highlighter_703007" class="syntaxhighlighter  php">
<div class="bar">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_703007_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="5080" />
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<param name="FlashVars" value="highlighterId=highlighter_703007" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="-1" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
<param name="BGColor" value="" />
<param name="SWRemote" value="" />
<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">1</td>
            <td class="content">"php keyword">function "php plain">String_Begins_With("php variable">$needle"php plain">, "php variable">$haystack "php plain">{</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">2</td>
            <td class="content">"php keyword">return "php plain">("php functions">substr"php plain">("php variable">$haystack"php plain">, 0, "php functions">strlen"php plain">("php variable">$needle"php plain">))=="php variable">$needle"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">3</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> 从字符串中提取email地址</h3>
<div id="highlighter_569545" class="syntaxhighlighter  php">
<div class="bar">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_569545_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
<param name="_cx" value="5080" />
<param name="_cy" value="5080" />
<param name="FlashVars" value="highlighterId=highlighter_569545" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="-1" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
<param name="BGColor" value="" />
<param name="SWRemote" value="" />
<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">01</td>
            <td class="content">"php keyword">function "php plain">extract_emails("php variable">$str"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">02</td>
            <td class="content">"php comments">// This regular expression extracts all emails from a string:</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">03</td>
            <td class="content">"php variable">$regexp "php plain">= "php string">'/([a-z0-9_\.\-])+\@(([a-z0-9\-])+\.)+([a-z0-9]{2,4})+/i'"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">04</td>
            <td class="content">"php plain">preg_match_all("php variable">$regexp"php plain">, "php variable">$str"php plain">, "php variable">$m"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">05</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">06</td>
            <td class="content">"php keyword">return "php plain">isset("php variable">$m"php plain">[0]) ? "php variable">$m"php plain">[0] : "php keyword">array"php plain">();</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">07</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">08</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">09</td>
            <td class="content">"php variable">$test_string "php plain">= 'This is a test string...</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">10</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">11</td>
            <td class="content">"php plain">test1@example.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">12</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">13</td>
            <td class="content">"php plain">Test different formats:</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">14</td>
            <td class="content">"php plain">test2@example.org;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">15</td>
            <td class="content">"php plain"><a href="php string">"test3@example.org""php plain">>foobar</a></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">16</td>
            <td class="content">"php plain"><test4@example.org></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">17</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">18</td>
            <td class="content">"php plain">strange formats:</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">19</td>
            <td class="content">"php plain">test5@example.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">20</td>
            <td class="content">"php plain">test6[at]example.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">21</td>
            <td class="content">"php plain">test7@example.net.org.com</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">22</td>
            <td class="content">"php plain">test8@ example.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">23</td>
            <td class="content">"php plain">test9@!foo!.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">24</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">25</td>
            <td class="content">"php plain">foobar</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">26</td>
            <td class="content">"php plain">';</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">27</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">28</td>
            <td class="content">"php plain">print_r(extract_emails("php variable">$test_string"php plain">));</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
<div class="code_piece">
<h3><i>[代码]</i> [PHP]代码</h3>
<div id="highlighter_849258" class="syntaxhighlighter  php">
<div class="bar      show">
<div class="toolbar"><a style="width: 16px; height: 16px" class="item viewSource" title="view source" href="http://www.oschina.net/code/snippet_12_6759#viewSource">view source</a>
<div class="item copyToClipboard"><object id="highlighter_849258_clipboard" title="copy to clipboard" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,0,0" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="16" type="application/x-shockwave-flash" height="16">
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<param name="_cy" value="423" />
<param name="FlashVars" value="highlighterId=highlighter_849258" />
<param name="Movie" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="Src" value="/js/syntax-highlighter-2.1.382/scripts/clipboard.swf" />
<param name="WMode" value="Transparent" />
<param name="Play" value="0" />
<param name="Loop" value="-1" />
<param name="Quality" value="High" />
<param name="SAlign" value="" />
<param name="Menu" value="0" />
<param name="Base" value="" />
<param name="AllowScriptAccess" value="always" />
<param name="Scale" value="ShowAll" />
<param name="DeviceFont" value="0" />
<param name="EmbedMovie" value="0" />
<param name="BGColor" value="" />
<param name="SWRemote" value="" />
<param name="MovieData" value="" />
<param name="SeamlessTabbing" value="1" />
<param name="Profile" value="0" />
<param name="ProfileAddress" value="" />
<param name="ProfilePort" value="0" />
<param name="AllowNetworking" value="all" />
<param name="AllowFullScreen" value="false" /></object></div>
<a style="width: 16px; height: 16px" class="item printSource" title="print" href="http://www.oschina.net/code/snippet_12_6759#printSource">print</a><a style="width: 16px; height: 16px" class="item about" title="?" href="http://www.oschina.net/code/snippet_12_6759#about">?</a></div>
</div>
<div class="lines">
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">01</td>
            <td class="content">"php keyword">function "php plain">extract_emails("php variable">$str"php plain">){</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">02</td>
            <td class="content">"php comments">// This regular expression extracts all emails from a string:</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">03</td>
            <td class="content">"php variable">$regexp "php plain">= "php string">'/([a-z0-9_\.\-])+\@(([a-z0-9\-])+\.)+([a-z0-9]{2,4})+/i'"php plain">;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">04</td>
            <td class="content">"php plain">preg_match_all("php variable">$regexp"php plain">, "php variable">$str"php plain">, "php variable">$m"php plain">);</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">05</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">06</td>
            <td class="content">"php keyword">return "php plain">isset("php variable">$m"php plain">[0]) ? "php variable">$m"php plain">[0] : "php keyword">array"php plain">();</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">07</td>
            <td class="content">"php plain">}</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">08</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">09</td>
            <td class="content">"php variable">$test_string "php plain">= 'This is a test string...</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">10</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">11</td>
            <td class="content">"php plain">test1@example.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">12</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">13</td>
            <td class="content">"php plain">Test different formats:</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">14</td>
            <td class="content">"php plain">test2@example.org;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">15</td>
            <td class="content">"php plain"><a href="php string">"test3@example.org""php plain">>foobar</a></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">16</td>
            <td class="content">"php plain"><test4@example.org></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">17</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">18</td>
            <td class="content">"php plain">strange formats:</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">19</td>
            <td class="content">"php plain">test5@example.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">20</td>
            <td class="content">"php plain">test6[at]example.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">21</td>
            <td class="content">"php plain">test7@example.net.org.com</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">22</td>
            <td class="content">"php plain">test8@ example.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">23</td>
            <td class="content">"php plain">test9@!foo!.org</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">24</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">25</td>
            <td class="content">"php plain">foobar</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">26</td>
            <td class="content">"php plain">';</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="number">27</td>
            <td class="content"></td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="number">28</td>
            <td class="content">"php plain">print_r(extract_emails("php variable">$test_string"php plain">));</td>
        </tr>
    </tbody>
</table>
</div>
</div>
</div>
</div>
</div>
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