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//Õâ¸öʱºòÊä³öµÄΪbaicai¶ø²»ÊÇbai123cai,ÒòΪstr("pao")<strlen("bai123")
echo strtr("paocai!","pao","bai123");
?>
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2009-10-20 ......
<?php
function checkMobile($str)
{
$pattern = "/^(13|15)\d{9}$/";
if (preg_match($pattern,$str))
{
Return true;
}
else
{
Return false;
}
}
$str = checkMobile("15800000001");
......