如何在PHP程序中防止盗链

2024-05-04 22:57:28

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example:

页面: dl.php
--------------------------------------------------------------------------------------
<?php

$id = $_get['id'];
$act = $_get['act'];

switch($act) {
default :
case "display" : displayhtml(); break;
case "down" : down(); break;
}

function displayhtml($id) {
setcookie("visited", "true");

// print your html.
}

function down($id) {
if(! isset($_cookie['visited']) ) print "你盗联?";

$sql = "select path from table where id=". $id;
//..............................
}
?>

<a href="dl.php?id=1&act=down">download now...</a>

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