FILTER_VALIDATE_EMAIL 过滤器把值作为电子邮件地址来验证。
<?php
$email = "someone@exa mple.com";
if(!filter_var($email, FILTER_VALIDATE_EMAIL))
{
echo "E-mail is not valid";
}
else
{
echo "E-mail is valid";
}
?>
输出:
E-mail is not valid
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