PHP form validation implementation code_PHP tutorial

复制代码 代码如下:

姓名：
密码：
密码确认：
性别：	男 女
生日：
E-mail：
职业：

复制代码 代码如下:

function form_sub()
{
if(!test_username(document.form1.username.value))
{
alert("姓名格式不正确");
return false;
}

if(!test_date(document.form1.birthday.value))
{
alert("日期格式不正确");
return false;
}

if(!test_email(document.form1.email.value))
{
alert("E-mail地址格式不正确");
return false;
}

if(!test_password(document.form1.password.value, document.form1.password2.value))
{
alert("两次密码输入不相同");
return false;
}
}

function test_username(str_username)
{
var pattern = /[a-zA-Z_]/;
if(pattern.test(str_username))
return true;
else
return false;
}

function test_date(str_birthday)
{
var pattern = /[0-9]{4}-[0-9]{2}-[0-9]{2}/;
if(pattern.test(str_birthday))
return true;
else
return false;
}

function test_email(str_email)
{
var pattern = /^[a-zA-Z0-9_.]+@([a-zA-Z0-9_]+.)+[a-zA-Z]{2,3}$/;
if(pattern.test(str_email))
return true;
else
return false;
}

function test_password(str_p1, str_p2)
{
if(str_p1==str_p2)
return true;
else
return false;
}

复制代码 代码如下:

//This program is used to receive form data from HTML pages and perform corresponding verification
$founderr = false; //Initialize the founderr variable, indicating that there is no error
if(!ereg("[a-zA-Z_]", $_GET['username']))
{
echo "The name format is incorrect
";
$founderr = true;
}

if(!ereg("[0-9]{4}-[0-9]{2}-[0-9]{2}", $_GET[' birthday']))
{
echo "The date format is incorrect
";
$founderr = true;
}

if(!ereg("^[ a-zA-Z0-9_.]+@([a-zA-Z0-9_]+.)+[a-zA-Z]{2,3}$", $_GET['email']))
{
echo "E-mail address format is incorrect
";
$founderr = true;
}

if($_GET['password'] != $_GET['password2'])
{
echo "Two password entries are not the same";
$founderr = true;
}

if(!$founderr)
{
?>

















< ;/tr>

Name:
Password:
Gender: < ;/td>
Birthday:
E -mail：
Occupation:

}
?>

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