下们用到了php教程的了ereg函数来验证电子邮箱地址,用户名,url地址实例了。
把url拆分
邮箱地址
$s = 'm@t.ca';
if (ereg ('([[:alpha:]]+)@([[:alpha:]]+).([[:alpha:]]{2,4})', $s, $matches))
{
echo "Regular expression successful. Dumping matchesn";
var_dump ($matches);
}
else
{
echo "Regular expression unsuccessful.n";
}?>
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邮箱地址二
$email="a@a.com";
$is_com = ereg("(.)(com$)", $email);
print $is_com;
?>
用户名验证
$username = "Test";
if (ereg("([^a-z])",$username)) echo "Username must be all lowercase!";
?>










