User Registration and Form Validation Using CodeIgniter

[invalidity]

By using CodeIgniter framework, you’ll learn how easy it is to create a registration form with validation using the form_validation library that is built-in with CodeIgniter.

This example demonstrates how to validate every control in your form. One example is the validation of email address. All you have to do is simply specify this argument: valid_email. CodeIgniter will simply look for that function and validate the email for you.

Here’s the example of the form validate in this code sample.

1. //validate form input
   
2. $this
   
   ->
   
   form_validation
   
   ->
   
   set_rules
   
   (
   
   'guest_title'
   
   ,
   
   'Title'
   
   ,
   
   'required|xss_clean'
   
   )
   
   ;
   
3. $this
   
   ->
   
   form_validation
   
   ->
   
   set_rules
   
   (
   
   'first_name'
   
   ,
   
   'First Name'
   
   ,
   
   'required|xss_clean'
   
   )
   
   ;
   
4. $this
   
   ->
   
   form_validation
   
   ->
   
   set_rules
   
   (
   
   'last_name'
   
   ,
   
   'Last Name'
   
   ,
   
   'required|xss_clean'
   
   )
   
   ;
   
5. $this
   
   ->
   
   form_validation
   
   ->
   
   set_rules
   
   (
   
   'birth_date_year'
   
   ,
   
   'Year'
   
   ,
   
   'xss_clean'
   
   )
   
   ;
   
6. $this
   
   ->
   
   form_validation
   
   ->
   
   set_rules
   
   (
   
   'birth_date__nc_month'
   
   ,
   
   'Month'
   
   ,
   
   'xss_clean'
   
   )
   
   ;
   
7. $this
   
   ->
   
   form_validation
   
   ->
   
   set_rules
   
   (
   
   'birth_date__nc_day'
   
   ,
   
   'Day'
   
   ,
   
   'xss_clean'
   
   )
   
   ;
   
8. $this
   
   ->
   
   form_validation
   
   ->
   
   set_rules
   
   (
   
   'company'
   
   ,
   
   'Company'
   
   ,
   
   'xss_clean'
   
   )
   
   ;
   
9. $this
   
   ->
   
   form_validation
   
   ->
   
   set_rules
   
   (
   
   'url'
   
   ,
   
   'Website'
   
   ,
   
   'xss_clean'
   
   )
   
   ;
   
10. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'address'
    
    ,
    
    'Address'
    
    ,
    
    'required|xss_clean'
    
    )
    
    ;
    
11. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'address_2'
    
    ,
    
    'Address 2'
    
    ,
    
    'xss_clean'
    
    )
    
    ;
    
12. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'city'
    
    ,
    
    'City'
    
    ,
    
    'required|xss_clean'
    
    )
    
    ;
    
13. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'state'
    
    ,
    
    'State/Province'
    
    ,
    
    'xss_clean'
    
    )
    
    ;
    
14. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'country'
    
    ,
    
    'Country'
    
    ,
    
    'required|xss_clean'
    
    )
    
    ;
    
15. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'zipcode'
    
    ,
    
    'Zip/Postal code'
    
    ,
    
    'required|xss_clean'
    
    )
    
    ;
    
16. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'phone'
    
    ,
    
    'Phone'
    
    ,
    
    'required|xss_clean'
    
    )
    
    ;
    
17. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'email'
    
    ,
    
    'Email Address'
    
    ,
    
    'required|valid_email'
    
    )
    
    ;
    
18. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'username'
    
    ,
    
    'Username'
    
    ,
    
    'required|xss_clean'
    
    )
    
    ;
    
19. 
    
20. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'password'
    
    ,
    
    'Password'
    
    ,
    
    'required|matches[password_confirm]'
    
    )
    
    ;
    
21. $this
    
    ->
    
    form_validation
    
    ->
    
    set_rules
    
    (
    
    'password_confirm'
    
    ,
    
    'Password Confirmation'
    
    ,
    
    'required'
    
    )
    
    ;
    

To configure CodeIgniter,please refer to Getting Started With CodeIgniter.

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