PHP Registration Input Information Validator Implementation of detailed _php skills

Source: Internet
Author: User
Tags getmessage sha1
1, the input information to verify the class (mainly used to verify the user name, password, duplicate password, mailbox, can add other functions)
Copy Code code as follows:

<?php
/**
* Validator for Register.
*/
Final class Registervalidator {
Private Function __construct () {

}
/**
* Validate the given username, password, repeat_password and email.
* @param $username, $password, $repeat _password and $email to be validated
* @return Array array of {@link Error} s
*/
public static function Validate ($username, $password, $repeat _password, $email) {
$errors = Array ();
$username = Trim ($username);
$password = Trim ($password);
if (! $username) {
$errors [] = new Error (' username ', ' user name cannot be empty. ');
} elseif (Strlen ($username) <3) {
$errors [] = new Error (' username ', ' username cannot be less than 3 characters long. ');
} elseif (Strlen ($username) >30) {
$errors [] = new Error (' username ', ' username cannot exceed 30 characters in length. ');
} elseif (!preg_match ('/^[a-za-z]+$/', substr ($username, 0, 1))) {
$errors [] = new Error (' username ', ' username must begin with a letter. ');
} elseif (!preg_match ('/^[a-za-z0-9_]+$/', $username)) {
$errors [] = new Error (' username ', ' user name can only be a combination of letters, numbers, and underscores (_). ');
} elseif (! $password) {
$errors [] = new Error (' Password ', ' password cannot be empty. ');
} elseif (Strlen ($password) <6) {
$errors [] = new Error (' Password ', ' password length cannot be less than 6 characters. ');
} elseif (Strlen ($password) >30) {
$errors [] = new Error (' Password ', ' password length cannot exceed 30 characters. ');
} elseif (!preg_match ('/^[a-za-z0-9!@#\\$%\\^&\\*_]+$/', $password)) {
$errors [] = new Error (' Password ', ' password can only be a combination of characters such as numbers, letters, or!@#$%^&*_. ');
} elseif ($password!= trim ($repeat _password)) {
$errors [] = new Error (' Password ', ' two input password inconsistent. ');
} elseif (! Utils::isvalidemail ($email)) {
$errors [] = new Error (' email ', ' mailbox format is incorrect. ');
} else {
Check whether user exists or not
$dao = new Userdao ();
$user = $dao->findbyname (Trim ($username));
if ($user) {
$errors [] = new Error (' username ', ' the username is already in use. ');
}

$user = null;
Check whether email being used or not
$user = $dao->findbyemail (Trim ($email));
if ($user) {
$errors [] = new Error (' email ', ' This mailbox has been registered. ');
}
}
return $errors;
}
}
?>

2, on the registration page to call
Copy Code code as follows:

$username = null;
$password = null;
$repeat _password = null;
$email = null;
$msg = "";
if (isset ($_post[' username ')) && isset ($_post[' password '])
&& isset ($_post[' Repeat_password ']) && isset ($_post[' email ')) {
$username = Addslashes (Trim (stripslashes ($_post [' username ']));
$password = Addslashes (Trim (stripslashes ($_post [' Password ']));
$repeat _password = addslashes (Trim (stripslashes ($_post [' Repeat_password ']));
$email = Addslashes (Trim (stripslashes ($_post [' email ')]);
Validate
$errors = Registervalidator::validate ($username, $password, $repeat _password, $email);
Validate
if (empty ($errors)) {
Save
$dao = new Userdao ();
$user = new User ();
$user->setemail ($email);
$last _login_ip = utils::getipaddress ();
$user->setlastloginip ($last _login_ip);
$user->setusername ($username);
$salt = substr (SHA1 (Mt_rand ()), 0, 22);
$hash _password = SHA1 ($salt. $password);
$user->setpassword ($hash _password);
$user->setsalt ($salt);
$user = $dao->save ($user);
if ($user) {
Userlogin::setuserinfo ($user);
Flash::addflash (' Registration successful! ');
}
else {
Flash::addflash (' Sorry, due to server internal error, cause registration failed. Please try again later. ');
}
Utils::redirect (' welcome ');
}

foreach ($errors as $e) {
$msg. = $e->getmessage (). <br> ";
}

3. Error class used in code to record errors when validating
Copy Code code as follows:

<?php
/**
* Validation error.
*/
Final class Error {
Private $source;
Private $message;
/**
* Create new error.
* @param mixed $source source of the error
* @param string $message error message
*/
function __construct ($source, $message) {
$this->source = $source;
$this->message = $message;
}
/**
* Get source of the error.
* @return Mixed source of the error
*/
Public Function GetSource () {
return $this->source;
}
/**
* Get error message.
* @return String Error message
*/
Public Function GetMessage () {
return $this->message;
}
}
?>

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