An example of code to implement anti-leeching in PHP

Let me introduce to you a code to prevent hotlinking in PHP. Friends in need can refer to it.

php anti-hotlink code.

<?php  
/**
 * php 防盗链
 * by http://bbs.it-home.org
*/
    $ADMIN[defaulturl] = "test.gif";//盗链返回的地址  
    $okaysites = array("http://bbs.it-home.org/","http://jbxue.com/");  //白名单    
    $ADMIN[url_1] = "http://jbxue.com/";//下载地点1  
    $ADMIN[url_2] = ""; //下载地点2，以此类推  
       
    $reffer = $HTTP_REFERER;  
      
    if($reffer) {  
        $yes = 0;  
        while(list($domain, $subarray) = each($okaysites)) {  
            if (ereg($subarray,"$reffer")) {  
                $yes = 1;  
            }  
        }  
      
        $theu = "url"."_"."$site";  
      
        if ($ADMIN[$theu] AND $yes == 1) {  
            header("Location: $ADMIN[$theu]/$file");  
        } else {  
            header("Location: $ADMIN[defaulturl]");  
        }  
    } else {  
        header("Location: $ADMIN[defaulturl]");  
    }
 ?>

Friends who are interested can also refer to the previously introduced A php anti-hotlink code.