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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;
}

?>


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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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phpʱ¼äÕýÔòÎÊÌâ - PHP / »ù´¡±à³Ì

PHP code:

$date = '2009-12-25';
$ptn = '/([\d]{4})[- \/](0?[\d]|1[0-2])[-\/ ](0?[\d]|[1-2][\d]|3[0-1])/';
if (preg_match($ptn,$date,$out))
{
print_r($out);exit();
}
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PHP code:
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