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 <?php

function checkMobile($str)
{
$pattern = "/^(13|15)\d{9}$/";
if (preg_match($pattern,$str))
{
Return true;
}
else
{
Return false;
}
}
$str = checkMobile("15800000001");
if($str)
{
echo("·ûºÏÊÖ»úºÅÂë±ê×¼");
}
else
{
echo("²»·ûºÏÊÖ»úºÅÂë±ê×¼");
}
?>
 


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if(!strcmp(long2ip(sprintf("%u",ip2long($ip))),$ip)) echo "is ipn";
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eregi("^[_.0-9a-zA-Z-]+@([0-9a-zA-Z][0-9a-zA-Z_-]+.)+[a-zA-Z]$", $email);
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$mask = '255.255.255.0';
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