$referer = isset ( $_SERVER [ 'HTTP_REFERER' ] ) ? $_SERVER [ 'HTTP_REFERER' ] : NULL; |
$host = $_SERVER [ 'HTTP_HOST' ]; |
echo '提交过来的地址:' . $referer ; |
echo ' |
'; |
echo '本站域名:' . $host ; |
echo ' |
'; |
echo substr ( $referer ,7, strlen ( $host ) ); |
if ( substr ( $referer ,7, strlen ( $host ) ) != $host ) |
{ |
echo '非法操作' ; |
} |
else |
{ |
echo '正常操作' ; |
} |