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PHP code:

<?php

function CheckPost(){
$referer = $_SERVER['HTTP_REFERER'];
$server = $_SERVER['SERVER_NAME'];
$refererok = false;
if (substr($referer,8,strlen($server)) = $referer){
$refererok = true;
}
return $refererok;
}

?>


ÉÏÃæÊÇPHPµÄº¯Êý£¬µ÷ÓõÄʱºòÓÃµÄ require_once "../function.php"; //·¾¶ÕýÈ·µÄ¡£
PHP code:

if (CheckPost()){
echo "123";
}
else {
echo "321";
}



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if (substr($referer,8,strlen($server)) = $referer){
        $refererok = true;
    }
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