Gets the PHP class for the content specified in the page

Function:

1. Get the url,email,image in the content.

2. Replace the url,email,image in the content.

Url:<a href= "url" >xxx</a>

Email:admin@admin.com

Image:

Grep.class.php

<?php/** grep class * date:2013-06-15 * author:fdipzone * ver:1.0 * * Func: * * Set:  Set content * Get: Returns the specified content * Replace: Returns the replaced content * Get_pattern returns pattern/class grep{/class based on type Start private $_pattern = array (' URL ' => '/<a.*?href= ' (http (s)?: \ /\/).*?)". *?/si ', ' email ' => '/([\w\-\.] +@[\w\-\.] + (\.\w+))/', ' image ' => '//i"); Private $_content = ';  
        SOURCE content * @param String $content/Public Function set ($content = ') {  
    $this->_content = $content; /* Get the specified content * @param String $type * See more highlights in this column: HTTP://WWW.BIANCENG.CNHTTP://WWW.BIANCENG.C
   n/webkf/php/* @param int $unique 0:all 1:unique * @return Array * * Public function Get ($type = ', $unique =0) {$type = Strtolower ($type);  
        if ($this->_content== ' | | |!in_array ($type, Array_keys ($this->_pattern))) {return array (); $pattern = $this->get_pattern ($type);  
      
        Get pattern Preg_match_all ($pattern, $this->_content, $matches); return Isset ($matches [1])?  
      
    ($unique ==0 $matches [1]: Array_unique ($matches [1])): Array (); 
    /* Get the Replaced content * @param string $type * @param string $callback * @return string  
      
        * * Public Function replace ($type = ', $callback = ') {$type = Strtolower ($type); if ($this->_content== ' | |!in_array ($type, Array_keys ($this->_pattern)) | | $callback = = ") {return $thi  
        s->_content;  
      
        $pattern = $this->get_pattern ($type); Return Preg_replace_callback ($pattern, $caLlback, $this->_content); /* Get pattern * @param string $type * @return string/Private function g based on type  
    Et_pattern ($type) {return $this->_pattern[$type]; }//Class end?>

Demo

<?php  
Header (' Content-type:text/htm;charset=utf8 ');  
      
Require (' Grep.class.php ');  
      
$content = file_get_contents (' http://www.test.com/');  
      
$obj = new Grep ();  
$obj->set ($content);  
      
$url = $obj->get (' url ', 0);  
$email = $obj->get (' email ', 1);  
$image = $obj->get (' image ', 1);  
      
Print_r ($url);  
Print_r ($email);  
Print_r ($image);  
      
$url _new = $obj->replace (' url ', ' Replace_url ');  
echo $url _new;  
      
function Replace_url ($matches) {return  
    isset ($matches [1])? ' [url] '. $matches [1]. ' [/URL] ': ';  
}  
? >