[Solved] Regex Check Codeigniter Form Validation

In codeigniter callback form validation

How can I check if $password has at least one upper case letter?

PHP Code:

<?php

class Login extends CI_Controller {

    public function __construct() {
        parent::__construct();
    }

    public function index() {    
        $data['title'] = 'Administration';

        $this->form_validation->set_rules('username', 'Username', 'trim|required');
        $this->form_validation->set_rules('password', 'Password', 'trim|required|callback_regex');

        if ($this->form_validation->run() == FALSE) {

            $this->load->view('common/header.tpl', $data);
            $this->load->view('common/login.tpl', $data);
            $this->load->view('common/footer.tpl');

        } else {

            redirect('common/dashboard');

        }
    }

    public function regex($password) {
        if ($password == FALSE) {
            $this->form_validation->set_message('regex', 'Password must contain at least one upper case letter');
            return false;
        } else {
            return true;
        }
    }
} 


There's only one rule - please don't tell anyone to go and read the manual.  Sometimes the manual just SUCKS!

In codeigniter callback form validation

How can I check if $password has at least one upper case letter?

PHP Code:

<?php

class Login extends CI_Controller {

 public function __construct() {
 parent::__construct();
 }

 public function index() { 
 $data['title'] = 'Administration';

 $this->form_validation->set_rules('username', 'Username', 'trim|required');
 $this->form_validation->set_rules('password', 'Password', 'trim|required|callback_regex');

 if ($this->form_validation->run() == FALSE) {

 $this->load->view('common/header.tpl', $data);
 $this->load->view('common/login.tpl', $data);
 $this->load->view('common/footer.tpl');

 } else {

 redirect('common/dashboard');

 }
 }

 public function regex($password) {
 if ($password == FALSE) {
 $this->form_validation->set_message('regex', 'Password must contain at least one upper case letter');
 return false;
 } else {
 return true;
 }
 }
} 


You could check for ascii code of each char in password, for ex:

PHP Code:

function hasCapital($str) {
        $found = false;
        for ($i = 0; $i < strlen($str); $i++) {
            if (ord($str[$i]) >= 65 && ord($str[$i]) <= 90) {
                $found = true;
                break;
            }
        }
        return $found;
} 


In codeigniter callback form validation

How can I check if $password has at least one upper case letter?

PHP Code:

<?php

class Login extends CI_Controller {

 public function __construct() {
 parent::__construct();
 }

 public function index() { 
 $data['title'] = 'Administration';

 $this->form_validation->set_rules('username', 'Username', 'trim|required');
 $this->form_validation->set_rules('password', 'Password', 'trim|required|callback_regex');

 if ($this->form_validation->run() == FALSE) {

 $this->load->view('common/header.tpl', $data);
 $this->load->view('common/login.tpl', $data);
 $this->load->view('common/footer.tpl');

 } else {

 redirect('common/dashboard');

 }
 }

 public function regex($password) {
 if ($password == FALSE) {
 $this->form_validation->set_message('regex', 'Password must contain at least one upper case letter');
 return false;
 } else {
 return true;
 }
 }
} 


You could check for ascii code of each char in password, for ex:

PHP Code:

function hasCapital($str) {
        $found = false;
        for ($i = 0; $i < strlen($str); $i++) {
            if (ord($str[$i]) >= 65 && ord($str[$i]) <= 90) {
                $found = true;
                break;
            }
        }
        return $found;
} 


That worked but is there away to have it in a MY_Form_validation library so do not have to enter it as call back?

There's only one rule - please don't tell anyone to go and read the manual.  Sometimes the manual just SUCKS!

That worked but is there away to have it in a MY_Form_validation library so do not have to enter it as call back?

Just add the method to your MY_Form_validation library.
To use it set a rule that calls this method

PHP Code:

$this->form_validation->set_rules('password', 'Password', 'required|hasCapital'); 


if you would like to pass an extra value to this or any other custom validation rule use []

PHP Code:

$this->form_validation->set_rules('password', 'Password', 'required|hasCapital[some_extra_value]'); 


I have placed the function in my form validation library but I get a error message:

I would like when false message to say. You need to have at least one upper case letter

PHP Code:

<?php

class MY_Form_validation extends CI_Form_validation {
    
    function hasCapital($str) {
        $found = false;
        for ($i = 0; $i < strlen($str); $i++) {
            if (ord($str[$i]) >= 65 && ord($str[$i]) <= 90) {
                $found = true;
                break;
            }
        }
        return $found;
    } 
} 


Error Message:

Code:

Unable to access an error message corresponding to your field name Password.(hasCapital)

Controller

PHP Code:

<?php

class Login extends CI_Controller {

    public function __construct() {
        parent::__construct();
    }

    public function index() {    
        $data['title'] = 'Administration';

        $this->form_validation->set_rules('username', 'Username', 'trim|required');
        $this->form_validation->set_rules('password', 'Password', 'trim|required|hasCapital');

        if ($this->form_validation->run() == FALSE) {

            $this->load->view('common/header.tpl', $data);
            $this->load->view('common/login.tpl', $data);
            $this->load->view('common/footer.tpl');

        } else {

            redirect('common/dashboard');

        }
    }
} 


Update:
I have tried this now. Just would like to know if correct?

PHP Code:

<?php

class MY_Form_validation extends CI_Form_validation {

   function has_capital($str) {
    if ($this->regex($str) == FALSE) {
           $this->set_message('has_capital', 'Your ' .$str. ' needs to have at least one upper case letter');
       return false;
    } else {
       return true;
    }
    } 
    
    function regex($str) {
        $found = FALSE;

        for ($i = 0; $i < strlen($str); $i++) {
            if (ord($str[$i]) >= 65 && ord($str[$i]) <= 90) {
                $found = true;
                break;
            }
        }

        return $found;
    } 
} 


There's only one rule - please don't tell anyone to go and read the manual.  Sometimes the manual just SUCKS!

Update:
I have tried this now. Just would like to know if correct?

PHP Code:

<?php

class MY_Form_validation extends CI_Form_validation {

   function has_capital($str) {
    if ($this->regex($str) == FALSE) {
           $this->set_message('has_capital', 'Your ' .$str. ' needs to have at least one upper case letter');
       return false;
    } else {
       return true;
    }
    } 
    
    function regex($str) {
        $found = FALSE;

        for ($i = 0; $i < strlen($str); $i++) {
            if (ord($str[$i]) >= 65 && ord($str[$i]) <= 90) {
                $found = true;
                break;
            }
        }

        return $found;
    } 
} 


The set_message() call should probably be:

PHP Code:

$this->set_message('has_capital', 'Your {field} needs to have at least one upper case letter'); 


If you want to display what they input, you can use {param} in your message text. See http://www.codeigniter.com/user_guide/li...r-messages

Bonfire

Practical CodeIgniter 3
CodeIgniter Testing Guide

Update:
I have tried this now. Just would like to know if correct?

PHP Code:

<?php

class MY_Form_validation extends CI_Form_validation {

   function has_capital($str) {
    if ($this->regex($str) == FALSE) {
           $this->set_message('has_capital', 'Your ' .$str. ' needs to have at least one upper case letter');
       return false;
    } else {
       return true;
    }
    } 
    
    function regex($str) {
        $found = FALSE;

        for ($i = 0; $i < strlen($str); $i++) {
            if (ord($str[$i]) >= 65 && ord($str[$i]) <= 90) {
                $found = true;
                break;
            }
        }

        return $found;
    } 
} 


The set_message() call should probably be:

PHP Code:

$this->set_message('has_capital', 'Your {field} needs to have at least one upper case letter'); 


If you want to display what they input, you can use {param} in your message text. See http://www.codeigniter.com/user_guide/li...r-messages

Thanks for that tip

There's only one rule - please don't tell anyone to go and read the manual.  Sometimes the manual just SUCKS!