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：
CI = &get_instance ();
}
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];
}
}
}
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
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。
