生成缩略图代码,PHP代码库,德仔网

代码语言
代码分类
【PHP】生成缩略图
作者:Dezai.CN / 发布于2011/6/11/ 593
<div><span style="color: rgb(0,0,0); font-weight: bold">function</span> image_create_thumb<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$filename</span>, <span style="color: rgb(0,0,255)">$width</span>, <span style="color: rgb(0,0,255)">$height</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<a href="http://www.php.net/list" target="_blank"><span style="color: rgb(0,0,102)">list</span></a><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Width"</span><span style="color: rgb(102,204,102)">]</span>, <span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Height"</span><span style="color: rgb(102,204,102)">]</span>, <span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Type"</span><span style="color: rgb(102,204,102)">]</span><span style="color: rgb(102,204,102)">)</span> = <a href="http://www.php.net/getimagesize" target="_blank"><span style="color: rgb(0,0,102)">getimagesize</span></a><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$filename</span><span style="color: rgb(102,204,102)">)</span>;

<span style="color: rgb(177,177,0)">if</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Type"</span><span style="color: rgb(102,204,102)">]</span> == IMG_JPG || <span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Type"</span><span style="color: rgb(102,204,102)">]</span> == IMG_JPEG<span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$im_image</span> = ImageCreateFromJPEG<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$filename</span><span style="color: rgb(102,204,102)">)</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(177,177,0)">if</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Type"</span><span style="color: rgb(102,204,102)">]</span> == IMG_GIF<span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$im_image</span> = ImageCreateFromGIF<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$filename</span><span style="color: rgb(102,204,102)">)</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(177,177,0)">if</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Type"</span><span style="color: rgb(102,204,102)">]</span> == IMG_PNG<span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$im_image</span> = ImageCreateFromPNG<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$filename</span><span style="color: rgb(102,204,102)">)</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="color: rgb(177,177,0)">if</span><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Width"</span><span style="color: rgb(102,204,102)">]</span> > <span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Height"</span><span style="color: rgb(102,204,102)">]</span><span style="color: rgb(102,204,102)">)</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$scale</span> = <span style="color: rgb(0,0,255)">$width</span> / <span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Width"</span><span style="color: rgb(102,204,102)">]</span>;
<span style="color: rgb(0,0,255)">$thumb_width</span> = <span style="color: rgb(0,0,255)">$width</span>;
<span style="color: rgb(0,0,255)">$thumb_height</span> = <a href="http://www.php.net/floor" target="_blank"><span style="color: rgb(0,0,102)">floor</span></a><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Height"</span><span style="color: rgb(102,204,102)">]</span>*<span style="color: rgb(0,0,255)">$scale</span><span style="color: rgb(102,204,102)">)</span>;
<span style="color: rgb(102,204,102)">}</span>
<span style="color: rgb(177,177,0)">else</span>
<span style="color: rgb(102,204,102)">{</span>
<span style="color: rgb(0,0,255)">$scale</span> = <span style="color: rgb(0,0,255)">$height</span> / <span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Height"</span><span style="color: rgb(102,204,102)">]</span>;
<span style="color: rgb(0,0,255)">$thumb_height</span> = <span style="color: rgb(0,0,255)">$height</span>;
<span style="color: rgb(0,0,255)">$thumb_width</span> = <a href="http://www.php.net/floor" target="_blank"><span style="color: rgb(0,0,102)">floor</span></a><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Width"</span><span style="color: rgb(102,204,102)">]</span>*<span style="color: rgb(0,0,255)">$scale</span><span style="color: rgb(102,204,102)">)</span>;
<span style="color: rgb(102,204,102)">}</span>

<span style="color: rgb(0,0,255)">$im_thumb</span> = @ImageCreateTrueColor<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$thumb_width</span>, <span style="color: rgb(0,0,255)">$thumb_height</span><span style="color: rgb(102,204,102)">)</span> or <a href="http://www.php.net/die" target="_blank"><span style="color: rgb(0,0,102)">die</span></a><span style="color: rgb(102,204,102)">(</span><span style="color: rgb(255,0,0)">"Cannot Initialize new GD image stream"</span><span style="color: rgb(102,204,102)">)</span>;

ImageCopyResized<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$im_thumb</span>,<span style="color: rgb(0,0,255)">$im_image</span>,<span style="color: rgb(204,102,204)">0</span>,<span style="color: rgb(204,102,204)">0</span>,<span style="color: rgb(204,102,204)">0</span>,<span style="color: rgb(204,102,204)">0</span>,<span style="color: rgb(0,0,255)">$thumb_width</span>,<span style="color: rgb(0,0,255)">$thumb_height</span>,<span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Width"</span><span style="color: rgb(102,204,102)">]</span>,<span style="color: rgb(0,0,255)">$image</span><span style="color: rgb(102,204,102)">[</span><span style="color: rgb(255,0,0)">"Height"</span><span style="color: rgb(102,204,102)">]</span><span style="color: rgb(102,204,102)">)</span>;

ImageDestroy<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$im_image</span><span style="color: rgb(102,204,102)">)</span>;
ImagePNG<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$im_thumb</span>, <span style="color: rgb(0,0,255)">$filename</span><span style="color: rgb(102,204,102)">)</span>;
ImageDestroy<span style="color: rgb(102,204,102)">(</span><span style="color: rgb(0,0,255)">$im_thumb</span><span style="color: rgb(102,204,102)">)</span>;

<span style="color: rgb(177,177,0)">return</span> <span style="color: rgb(0,0,0); font-weight: bold">true</span>;
<span style="color: rgb(102,204,102)">}</span><span style="font-style: italic; color: rgb(128,128,128)">//image_create_thumb($filename, $width, $height) </span></div>
评论列表
本站所提供的代码，版权归原作者所有，若有侵犯作者版权，请与我们联系，我们将立即删除或修改。谢谢!
本站所有代码发布及提供者。
试试其它关键字
　缩略图　
同语言下
可能有用的
Dezai.CN贡献的其它代码(4037)