php实现的CSS更新类实例

本文实例讲述了php实现的CSS更新类及其用法，非常实用。分享给大家供大家参考。具体如下：

CSSUpdate.class.php类文件如下：

is_ready = 0; 
    }else{ 
      $this->csstmpl_path = $csstmpl_path; 
      $this->css_path = $css_path; 
      $this->replacetags = $replacetags; 
      $this->search_child = $search_child; 
      $this->is_ready = 1; 
    } 
  } 
 
   
  public function update(){ 
    if($this->is_ready==0){ 
      $this->response('csstmpl or csspath or replacetags error'); 
      return ''; 
    } 
    $this->traversing($this->csstmpl_path); 
    $this->response('covert num:'.$this->convert_num); 
  } 
 
   
  private function traversing($path){ 
    $handle = opendir($path); 
    while(($file=readdir($handle))!==false){ 
      if($file!='..' && $file!='.'){ 
 $curfile = $path.'/'.$file; 
  
 if(is_dir($curfile)){  // folder 
   if($this->search_child){  // 需要遍历子文件夹 
     $this->traversing($curfile); 
   } 
 }elseif($this->checkExt($curfile)){ // css file 
   $dfile = str_replace($this->csstmpl_path, $this->css_path, $curfile); 
   $this->create($curfile, $dfile); 
   $this->response($curfile.' convert to '.$dfile.' success'); 
   $this->convert_num ++; 
 } 
      } 
    } 
    closedir($handle); 
  } 
 
   
  private function checkExt($file){ 
    $name = basename($file); 
    $namefrag = explode('.', $name); 
    if(count($namefrag)>=2){ 
      if(strtolower($namefrag[count($namefrag)-1])=='css'){ // css文件 
 return true; 
      } 
    } 
    return false; 
  } 
 
   
  private function create($tmplfile, $dfile){ 
    $css_content = file_get_contents($tmplfile); 
    foreach($this->replacetags as $tag){ 
      $css_content = str_replace($tag, $tag."?".date('YmdHis'), $css_content); 
    } 
    if(!is_dir(dirname($dfile))){  // 生成目标路径 
      mkdir(dirname($dfile), 0755, true); 
    } 
    file_put_contents($dfile, $css_content, true); 
  } 
 
   
  private function response($content){ 
    echo $content."
"; 
  } 
} 
?>

demo示例程序如下:

update(); 
?>

完整源码点击此处本站下载。

希望本文所述对大家PHP程序设计的学习有所帮助。