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php正则替换处理HTML页面的方法，php替换html页面
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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：
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<?phpif(!defined(BASEPATH)) exit(No direct script access allowed); /** * HTML替换处理类，考虑如下几种替换 * 1. img src : /]+?)/i * 2. a href : /]+?)/i * 3. ifram.src : /]+?)/i * 4. frame src : /]+?)/i * 5. js : /window.open([( ]+?)([\\" ]+?)(.+?)([ )+?])/i * 6. css : /background(.+?)url([( ])([\\" ]+?)(.+?)([ )+?])/i */ class Myreplace { private $moudle_array = array(udata, data, result,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:$this->CI->load->model(mupload_data,model);break; case data:$this->CI->load->model( askdata,model);break; case result:$this->CI->load->model( askresult,model);break; case dresult:$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($matches) relative_dirname; for($i=0; $iCI->model->get_id_by_path_and_project($relativepath,$this->projectid); //输出 if( !empty($image_id) ) { if($this->moudle == dresult) {return "CI->config->item("base_url")."cdms/".$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]. $matches[4]; } } else { return "<img".$matches[1]."src=".$matches[2].$matches[3].$matches[2].$matches[4]; } } private function html_replace( $matches ) { if(count($matches) relative_dirname; for($i=0; $iCI->model->get_id_by_path_and_project($relativepath,$this->projectid); //输出 if( !empty($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].$matches[4]; } } else { return "<iframe".$matches[1]."src=".$matches[2].$matches[3].$matches[2].$matches[4]; } } private function frame_replace( $matches ) {if(count($matches) 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].$matches[4]; } } else { return "<frame".$matches[1]."src=".$matches[2].$matches[3].$matches[2].$matches[4]; } } private function js_replace( $matches ){ if(count($matches) < 4) return \; if( empty($matches[3]) ) return \; //处理链接 $arr_html = split(,,$matches[3]); $href = $arr_html[0]; $other = \; for($i=0; $i0)return "window.open".$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 */
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