php正则替换处理HTML页面的方法

php  /  管理员 发布于 7年前   243

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' * 4. frame src : '/]+?)/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 = '/]+?)/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($matches) < 4) return '';  if( empty($matches[3]) ) return '';  $matches[3] = rtrim($matches[3],'\'"/');  //获取图片的id  $parent_dir_num = substr_count( $matches[3], '../');  $relative_dirname = $this->relative_dirname;  for($i=0; $i<$parent_dir_num; $i++) {  $relative_dirname = substr( $relative_dirname, 0, strrpos($relative_dirname,"/") );  }  $relativepath = rtrim($relative_dirname,'/') . '/'.ltrim($matches[3],'./');  $image_id = $this->CI->model->get_id_by_path_and_project($relativepath,$this->projectid);  //输出  if( !empty($image_id) ) {  if($this->moudle == 'dresult') {   return "CI->config->item("base_url")."cdms/".$this->moudle."/readpic/$image_id?pid=".$this->projectid .$matches[2]. $matches[4];  } else {   return "CI->config->item("base_url")."cdms/".$this->moudle."/picfile/$image_id?pid=".$this->projectid .$matches[2]. $matches[4];  }  } else {  return "relative_dirname;  for($i=0; $i<$parent_dir_num; $i++) {  $relative_dirname = substr( $relative_dirname, 0, strrpos($relative_dirname,"/") );  }  $relativepath = rtrim($relative_dirname,'/') . '/'.ltrim($matches[3],'./');  $txtfile_id = $this->CI->model->get_id_by_path_and_project($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; $i<$parent_dir_num; $i++) {  $relative_dirname = substr( $relative_dirname, 0, strrpos($relative_dirname,"/") );  }  $relativepath = rtrim($relative_dirname,'/') . '/'.ltrim($matches[3],'./');  $txtfile_id = $this->CI->model->get_id_by_path_and_project($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; $i<$parent_dir_num; $i++) {  $relative_dirname = substr( $relative_dirname, 0, strrpos($relative_dirname,"/") );  }  $relativepath = rtrim($relative_dirname,'/') . '/'.ltrim($matches[3],'./');  $txtfile_id = $this->CI->model->get_id_by_path_and_project($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; $i<$parent_dir_num; $i++) {  $relative_dirname = substr( $relative_dirname, 0, strrpos($relative_dirname,"/") );  }  $relativepath = rtrim($relative_dirname,'/') . '/'.ltrim($href,'./');  $txtfile_id = $this->CI->model->get_id_by_path_and_project($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) < 5) return '';  if( empty($matches[4]) ) return '';    $matches[4] = rtrim($matches[4],'\'"/');  //获取图片的id  $parent_dir_num = substr_count( $matches[4], '../');  $relative_dirname = $this->relative_dirname;  for($i=0; $i<$parent_dir_num; $i++) {  $relative_dirname = substr( $relative_dirname, 0, strrpos($relative_dirname,"/") );  }  $relativepath = rtrim($relative_dirname,'/') . '/'.ltrim($matches[4],'./');  $image_id = $this->CI->model->get_id_by_path_and_project($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..net.cn/regex/javascript

正则表达式在线生成工具：
http://tools..net.cn/regex/create_reg

希望本文所述对大家的php程序设计有所帮助。

您可能感兴趣的文章:

• PHP preg_replace() 正则替换所有符合条件的字符串
• PHP 字符串正则替换函数preg_replace使用说明
• PHP正则替换函数preg_replace和preg_replace_callback使用总结
• 如何在PHP中使用正则表达式进行查找替换
• PHP html标签正则替换并可自定义正则规则
• PHP把空格、换行符、中文逗号等替换成英文逗号的正则表达式
• php正则替换变量指定字符的方法
• php正则取img标记中任意属性(正则替换去掉或改变图片img标记中的任意属性)
• php中正则替换函数ereg_replace用法实例
• 详解PHP正则表达式替换实现(PHP preg_replace，PHP preg_replace)
• php中preg_replace正则替换用法分析【一次替换多个值】
• PHP实现通过正则表达式替换回调的内容标签
• PHP基于正则批量替换Img中src内容实现获取缩略图的功能示例