string example

The string validation is great for validating the user input against a regular expression, or checking the length of the string entered. If you ask for passwords two times to avoid typing mistakes, this validation type will help you to compare the field values.

The live form - submit it!

Source

This is the config array for Clonefish which generates the form you've just seen.
Scroll at the bottom of this window to see how to use this array!


<?php

$config = Array(

  'login' => Array(

    'type'           => 'inputText',

    'displayname'    => 'Login name, min. 5, max. 15 chars',

    'help'           => 'The login name has to be at least 5 characters long, and must not be longer than 15 characters',

    validation     => Array(

      Array( 

        'type'    => 'string',

        'minimum' => 5,

        'maximum' => 15,

      ),

    ),

  ),



  'password' => Array(

    'type'           => 'inputPassword',

    'displayname'    => 'Password, min. 5, max. 15 chars',

    'help'           => 'The password has to be at least 5 characters long, and must not be longer than 15 characters',

    validation     => Array(

      Array( 

        'type'    => 'string',

        'minimum' => 5,

        'maximum' => 15,

      ),

    ),

  ),



  'passwordverify' => Array(

    'type'           => 'inputPassword',

    'displayname'    => 'Password again',

    'help'           => 'The two password has to be the same',

    validation     => Array(

      Array( 

        'type'    => 'string',

        'equals'  => 'password',

      ),

    ),

  ),

  

  'email' => Array(

    'type'           => 'inputText',

    'displayname'    => 'Your e-mail address',

    'help'           => 'A valid e-mail address is required',

    validation     => Array(

      Array(

        'type'    => 'string',

        // an e-mail address format verification 

        // regular expression

        'regexp' => '/^[\._0-9a-z-]+@[0-9a-z][-0-9a-z\.]*\.[a-z]{2,4}$/' 

      ),

    ),

  ),

);



?>

Usage example

To create a form using this array you'll only need a few lines of code:

<?php // create the form object $clonefish = new clonefish( 'loginform', 'test.php', 'POST' ); // add the form elements (fields) pre-filled with // values from $_POST $clonefish->addElements( $config, $_POST ); // validate the form if the form has been submitted if ( count( $_POST ) && $clonefish->validate() ) { // form is valid, go and store values in database, etc. // $clonefish->getElementValues() provides a // normalized value array. } else // if the form wasn't submitted yet or the validation // had failed, show the form (automatically // including error messages) echo "<html><body>" . $clonefish->getHTML() . "</body></html>"; ?>

Take a look at
the PHP source!

Data dump

Below are the dumps of some PHP variables - submit the form to see the changes!

Contents of the $_POST array:
$_POST = array (
)

Results of a $clonefish->getElementValues() call:
array (
  'login' => NULL,
  'password' => NULL,
  'passwordverify' => NULL,
  'email' => NULL,
)

There are cases when the above arrays are different. This is not a bug, but a feature: clonefish was written to help with everyday form hassles (like avoiding the missing value of an unchecked checkbox or compiling the whole date string from date selector fields).

Examples
Element types
Validation
- date
- number
- required
- string
- database
- captcha

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clonefish - PHP form generator and validator class