压缩CSS的函数代码,PHP代码库,德仔网

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【PHP】压缩CSS的函数
作者: / 发布于2011/1/4/ 599
压缩CSS
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            <pre style="line-height: 150%; font-family: Verdana, Monospace; font-size: 12px; font-weight: bold; margin-right: 10px"><span style="font-style: italic; color: #666666">/*</span>
<span style="font-style: italic; color: #666666">* @package   cssmin</span>
<span style="font-style: italic; color: #666666">* @author   Joe Scylla <joe.scylla@gmail.com></span>
<span style="font-style: italic; color: #666666">* @copyright  2008 Joe Scylla <joe.scylla@gmail.com></span>
<span style="font-style: italic; color: #666666">* @license   http://opensource.org/licenses/mit-license.php MIT License</span>
<span style="font-style: italic; color: #666666">* @version   1.0.1.b3 (2008-10-02) (Modified)</span>
<span style="font-style: italic; color: #666666">*/</span>
<span style="color: #0000ff">function</span> cssmin_minify<span style="color: #009900">(</span><span style="color: #000088">$css</span><span style="color: #009900">)</span><span style="color: #009900">{</span>
  <span style="font-style: italic; color: #666666">// Remove comments</span>
  <span style="color: #000088">$css</span> <span style="color: #339933">=</span> <span style="color: blue">preg_replace</span><span style="color: #009900">(</span><span style="color: #0000ff">"/\/\*[\d\D]*?\*\/|<span style="color: #000099; font-weight: bold">\t</span>+/"</span><span style="color: #339933">,</span> <span style="color: #0000ff">" "</span><span style="color: #339933">,</span> <span style="color: #000088">$css</span><span style="color: #009900">)</span><span style="color: #339933">;</span>
  <span style="font-style: italic; color: #666666">// Replace CR, LF and TAB to spaces</span>
  <span style="color: #000088">$css</span> <span style="color: #339933">=</span> <span style="color: blue">str_replace</span><span style="color: #009900">(</span><span style="color: blue">array</span><span style="color: #009900">(</span><span style="color: #0000ff">"<span style="color: #000099; font-weight: bold">\n</span>"</span><span style="color: #339933">,</span> <span style="color: #0000ff">"<span style="color: #000099; font-weight: bold">\r</span>"</span><span style="color: #339933">,</span> <span style="color: #0000ff">"<span style="color: #000099; font-weight: bold">\t</span>"</span><span style="color: #009900">)</span><span style="color: #339933">,</span> <span style="color: #0000ff">" "</span><span style="color: #339933">,</span> <span style="color: #000088">$css</span><span style="color: #009900">)</span><span style="color: #339933">;</span>
  <span style="font-style: italic; color: #666666">// Replace multiple to single space</span>
  <span style="color: #000088">$css</span> <span style="color: #339933">=</span> <span style="color: blue">preg_replace</span><span style="color: #009900">(</span><span style="color: #0000ff">"/\s\s+/"</span><span style="color: #339933">,</span> <span style="color: #0000ff">" "</span><span style="color: #339933">,</span> <span style="color: #000088">$css</span><span style="color: #009900">)</span><span style="color: #339933">;</span>
  <span style="font-style: italic; color: #666666">// Remove unneeded spaces</span>
  <span style="color: #000088">$css</span> <span style="color: #339933">=</span> <span style="color: blue">preg_replace</span><span style="color: #009900">(</span><span style="color: #0000ff">"/\s*({|}|\[|\]|=|~|\+|>|\||;|:|,)\s*/"</span><span style="color: #339933">,</span> <span style="color: #0000ff">"<span style="color: #006699; font-weight: bold">$1</span>"</span><span style="color: #339933">,</span> <span style="color: #000088">$css</span><span style="color: #009900">)</span><span style="color: #339933">;</span>
  <span style="font-style: italic; color: #666666">// Removes the last semicolon of every style definition</span>
  <span style="color: #000088">$css</span> <span style="color: #339933">=</span> <span style="color: blue">str_replace</span><span style="color: #009900">(</span><span style="color: #0000ff">";}"</span><span style="color: #339933">,</span> <span style="color: #0000ff">"}"</span><span style="color: #339933">,</span> <span style="color: #000088">$css</span><span style="color: #009900">)</span><span style="color: #339933">;</span>
  
  <span style="color: #000088">$css</span> <span style="color: #339933">=</span> <span style="color: blue">trim</span><span style="color: #009900">(</span><span style="color: #000088">$css</span><span style="color: #009900">)</span><span style="color: #339933">;</span>
  <span style="color: #0099cc">return</span> <span style="color: #000088">$css</span><span style="color: #339933">;</span>
<span style="color: #009900">}</span>

<span style="color: #000000; font-weight: bold">?></span></pre>
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