请问如何编写正则表达式来验证电子邮件地址格式正确？
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本文共计72个文字，预计阅读时间需要1分钟。
php$email=[emailprotected];if (preg_match('/^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$/', $email)) { echo Your email is ok.;} else { echo Wrong email address format;}
$email = "[emailprotected]"; if (preg_match('/^[^0-9][a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)*[@][a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)*[.][a-zA-Z]{2,4}$/',$email)) { echo "Your email is ok."; } else { echo "Wrong email address format"; }
本文共计72个文字，预计阅读时间需要1分钟。
php$email=[emailprotected];if (preg_match('/^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$/', $email)) { echo Your email is ok.;} else { echo Wrong email address format;}
$email = "[emailprotected]"; if (preg_match('/^[^0-9][a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)*[@][a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)*[.][a-zA-Z]{2,4}$/',$email)) { echo "Your email is ok."; } else { echo "Wrong email address format"; }