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File: example_regex_callback.php

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  Classes of Thiemo Mättig  >  TM::Apeform  >  example_regex_callback.php  >  Download  
File: example_regex_callback.php
Role: Example script
Content type: text/plain
Description: Extended validation methods with callbacks and regular expressions
Class: TM::Apeform
A very abstract web form builder and processor
Author: By
Last change: Accessible without user login
Date: 5 years ago
Size: 1,965 bytes
 

Contents

Class file image Download
<?php

// Include the original TM::Apeform class to be extended.
require_once("Apeform.class.php");

/**
 * Extended TM::Apeform class.
 */
class ExtendedApeform extends Apeform
{
    function
regex($patterns, $offset = -1)
    {
        if (
$offset < 0) $offset += count($this->_rows);
       
$value = &$this->_rows[$offset]['value'];

        foreach ((array)
$patterns as $pattern => $message)
        {
           
// Required to handle multiple text elements.
           
foreach ((array)$value as $singleValue)
            {
                if (!
preg_match($pattern, $singleValue))
                {
                   
$this->error($message, $offset);
                    return
false;
                }
            }
        }
    }

    function
callback_price($offset = -1)
    {
        if (
$offset < 0) $offset += count($this->_rows);
       
$value = &$this->_rows[$offset]['value'];

       
$price = $value[0] + $value[1] / 100;
        if (
$price <= 0) $this->error("Price can not be empty");
    }
}

function
callback_price(&$form, $offset = -1)
{
    if (
$offset < 0) $offset += count($form->_rows);
   
$value = &$form->_rows[$offset]['value'];

   
$price = $value[0] + $value[1] / 100;
    if (
$price <= 0) $form->error("Price can not be empty");
}

$form = new ExtendedApeform();

$price = $form->text("Price", "This one uses regular expressions\t.\t Euro",
   
"", array(10, 2));
// Define a bunch of regular expressions and error messages.
$form->regex(array(
   
'/^\d*$/s' => "Invalid characters in price",
   
'/^.+$/s' => "Empty fields not allowed in price"));

$price = $form->text("Price", "This one uses an inner callback method\t.\t Euro",
   
"", array(10, 2));
$form->callback_price();

$price = $form->text("Price", "This one uses an outer callback function\t.\t Euro",
   
"", array(10, 2));
callback_price($form);

$form->submit("Try");
$form->display();

?>