php中使用正则表达式验证邮件地址

$email = "[email protected]"; if (preg_match ("/^[_.0-9a-z-a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,4}$/",$email)) { print "A match was found."; } else { print "A match was not found."; }