$email = "tanklo_--vehy@yahoo.com.cn";
function check_email($email) {
$pattern_test = "/([a-z0-9]*[-_.]?[a-z0-9]+)*@([a-z0-9]*[-_]?[a-z0-9]+)+[.][a-z]{2,3}([.][a-z]{2})?/i";
return preg_match($pattern_test,$email);
}
echo check_email($email);
function is_mobile($str){
return preg_match("/^(((d{3}))|(d{3}-))?13d{9}$/", $str);
}
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