php正则替换处理HTML页面的方法

            本文实例讲述了php正则替换处理HTML页面的方法。分享给大家供大家参考。具体如下：
]+?)/i'
* 5. js : '/window.open([( ]+?)([\'" ]+?)(.+?)([ )+?])/i'
* 6. css : '/background(.+?)url([( ])([\'" ]+?)(.+?)([ )+?])/i'
*/
class Myreplace {
private $moudle_array = array('udata','tdata','tresult','dresult');
private $content;
private $relative_dirname;
private $projectid;
private $moudle;
function __construct() {
  $this->CI = &get_instance ();
}
/**
  * 替换
  * @param string $content HTML内容
  * @param string $relative 相对路径
  * @param int $projectid 项目id
  * @moudle string $moudle 模板标识: udata,tdata,tresult,dresult
  */
public function my_replace($content,$relative,$projectid,$moudle) {
  $this->content = $content;
  $this->relative_dirname = $relative;
  $this->projectid = $projectid;
  if(in_array(strtolower($moudle),$this->moudle_array))
  $this->moudle = $moudle;
  else exit;
  switch($this->moudle) {
  case 'udata':
   $this->CI->load->model('mupload_data','model');
   break;
  case 'tdata':
   $this->CI->load->model('taskdata','model');
   break;
  case 'tresult':
   $this->CI->load->model('taskresult','model');
   break;
  case 'dresult':
   $this->CI->load->model('dmsresult','model');
   break;
  default:
   break;
  }
  $pattern = '/
[img][/img]
]+?)/i';
  $content = preg_replace_callback( $pattern, array($this, 'image_replace') , $content );
  $pattern = '/]+?)/i';
  $content = preg_replace_callback( $pattern, array($this, 'html_replace') , $content );
  $pattern = '/]+?)/i';
  $content = preg_replace_callback( $pattern, array($this, 'iframe_replace') , $content );
  $pattern = '/]+?)/i';
  $content = preg_replace_callback( $pattern, array($this, 'frame_replace'), $content );
  $pattern = '/window.open([( ]+?)([\'" ]+?)(.+?)([ )]+?)/i';
  $content = preg_replace_callback( $pattern, array($this, 'js_replace'), $content );
  $pattern = '/background(.+?)url([( ])([\'" ]+?)(.+?)([ )+?])/i';
  $content = preg_replace_callback( $pattern, array($this, 'css_replace'), $content);
  return $content;
}
private function image_replace($matches) {
  if(count($matches) relative_dirname;
  for($i=0; $iCI->model->get_id_by_path_and_project($relativepath,$this->projectid);
  //输出
  if( !empty($image_id) ) {
  if($this->moudle == 'dresult') {
   return "
[img].$matches[2].$this->CI->config->item([/img]
moudle."/readpic/$image_id?pid=".$this->projectid .$matches[2]. $matches[4];
  } else {
   return "
[img].$matches[2].$this->CI->config->item([/img]
moudle."/picfile/$image_id?pid=".$this->projectid .$matches[2]. $matches[4];
  }
  } else {
  return "
[img][/img]
0)
  $matches[3] = substr($matches[3],0,strrpos($matches[3],'#'));
  //获取html的id
  $parent_dir_num = substr_count( $matches[3], '../');
  $relative_dirname = $this->relative_dirname;
  for($i=0; $iCI->model->get_id_by_path_and_project($relativepath,$this->projectid);
  //输出
  if( !empty($txtfile_id ) ) {
  if($this->moudle == 'dresult') {
   return "CI->config->item("base_url")."cdms/".$this->moudle."/readfile/$txtfile_id?pid=".$this->projectid .$matches[2].$matches[4];
  } else {
   return "CI->config->item("base_url")."cdms/".$this->moudle."/txtfile/$txtfile_id?pid=".$this->projectid .$matches[2].$matches[4];
  }
  } else {
  return "0)
  $matches[3] = substr($matches[3],0,strrpos($matches[3],'#'));
  //获取html的id
  $parent_dir_num = substr_count( $matches[3], '../');
  $relative_dirname = $this->relative_dirname;
  for($i=0; $iCI->model->get_id_by_path_and_project($relativepath,$this->projectid);
  //输出
  if( !empty($txtfile_id ) ) {
  if($this->moudle == 'dresult') {
   return "CI->config->item("base_url")."cdms/".$this->moudle."/readfile/$txtfile_id?pid=".$this->projectid .$matches[2].$matches[4];
  } else {
   return "CI->config->item("base_url")."cdms/".$this->moudle."/txtfile/$txtfile_id?pid=".$this->projectid .$matches[2].$matches[4];
  }
  } else {
  return "0)
  $matches[3] = substr($matches[3],0,strrpos($matches[3],'#'));
  //获取html的id
  $parent_dir_num = substr_count( $matches[3], '../');
  $relative_dirname = $this->relative_dirname;
  for($i=0; $iCI->model->get_id_by_path_and_project($relativepath,$this->projectid);
  //输出
  if( !empty($txtfile_id ) ) {
  if($this->moudle == 'dresult') {
   return "CI->config->item("base_url")."cdms/".$this->moudle."/readfile/$txtfile_id?pid=".$this->projectid.$matches[2].$matches[4];
  } else {
   return "CI->config->item("base_url")."cdms/".$this->moudle."/txtfile/$txtfile_id?pid=".$this->projectid.$matches[2].$matches[4];
  }
  } else {
  return "0)
  return "window.open".$matches[1].$matches[2].$matches[3].$matches[4];;
  //获取html的id
  $parent_dir_num = substr_count( $href, '../');
  $relative_dirname = $this->relative_dirname;
  for($i=0; $iCI->model->get_id_by_path_and_project($relativepath,$this->projectid);
  //输出
  if( !empty($txtfile_id ) ) {
  if($this->moudle == 'dresult') {
   return "window.open".$matches[1].$matches[2].$this->CI->config->item("base_url")."cdms/".$this->moudle."/readfile/$txtfile_id?pid=".$this->projectid.$matches[2].','.$other.$matches[4];
  } else {
   return "window.open".$matches[1].$matches[2].$this->CI->config->item("base_url")."cdms/".$this->moudle."/txtfile/$txtfile_id?pid=".$this->projectid.$matches[2].','.$other.$matches[4];
  }
  } else {
  return "window.open".$matches[1].$matches[2].$matches[3].$matches[4];
  }
}
private function css_replace( $matches ) {
  if(count($matches) relative_dirname;
  for($i=0; $iCI->model->get_id_by_path_and_project($relativepath,$this->projectid);
  //输出
  if( !empty($image_id) ) {
  if($this->moudle == 'dresult') {
   return "background".$matches[1]."url".$matches[2].$matches[3].$this->CI->config->item("base_url")."cdms/".$this->moudle."/readpic/$image_id?pid=".$this->projectid .$matches[3]. $matches[5];
  } else {
   return "background".$matches[1]."url".$matches[2].$matches[3].$this->CI->config->item("base_url")."cdms/".$this->moudle."/picfile/$image_id?pid=".$this->projectid .$matches[3]. $matches[5];
  }
  } else {
  return "background".$matches[1]."url".$matches[2].$matches[3].$matches[4].$matches[3].$matches[5];
  }
}
}
/* End of Myreplace.php */
/* Location: /application/libraries/Myreplace.php */
PS：这里再为大家提供2款非常方便的正则表达式工具供大家参考使用：
JavaScript正则表达式在线测试工具：
http://tools.jb51.net/regex/javascript[/url]
正则表达式在线生成工具：
http://tools.jb51.net/regex/create_reg
希望本文所述对大家的php程序设计有所帮助。
            
            
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