本文实例讲述了php简单防盗链实现方法。分享给大家供大家参考。具体如下:
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<?php $ADMIN = array ( 'defaulturl' => 'http://blog.qita.in/images/banner-header.gif' , //盗链返回的地址 'url_1' => 'http://blog.qita.in/file' , 'url_2' => 'http://blog.qita.in/file1' , ); $okaysites = array ( 'http://qita.in' , 'http://blog.qita.in' , //白名单 'http://blog.qita.in/1.html' , ); $reffer = $_SERVER [ 'HTTP_REFERER' ]; if ( $reffer ) { $yes = 0; while (list( $domain , $subarray ) = each( $okaysites )) { if ( ereg ( $subarray , "$reffer" )) { $yes = 1; } } $theu = 'url_' . $_GET [ 'site' ]; $file = $_GET [ 'file' ]; if ( $ADMIN [ $theu ] and $yes == 1) { header( "Location: $ADMIN[$theu]/$file" ); } else { header( "Location: $ADMIN[defaulturl]" ); } } else { header( "Location: $ADMIN[defaulturl]" ); } print_r( $_SERVER [ 'HTTP_REFERER' ]); ?> |
希望本文所述对大家的php程序设计有所帮助。