php 检查电子邮件函数(自写)

复制代码 代码如下: function is_valid_email_address($email){ $qtext = ‘[^//x0d//x22//x5c//x80-//xff]’; $dtext = ‘[^//x0d//x5b-//x5d//x80-//xff]’; $atom = ‘[^//x00-//x20//x22//x28//x29//x2c//x2e//x3a-//x3c’. ‘//x3e//x40//x5b-//x5d//x7f-//xff]+’; $quoted_pair = ‘//x5c[//x00-//x7f]’; $domain_literal = “//x5b($d