Maggsweb Form Validator

An easy-to-use PHP Form Validation Class

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Table of Contents

Initialization
Validation Methods
File Upload Method
Return Methods

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Initialization

This class is instantiated after submission of a form.

Fields are registered within the class, so that Validation methods can be performed and arrays of errors/values returned

require_once ('MyFormValidator.php');

/**
 * Instantiate the FormValidator for use
 * Flag method as POST
 */
$formVal = new FormValidator();
$formVal->setMethod('post');

Validation Methods

All of these methods can be chained if required.

eg: $formVal->validate(‘some-field-name’)->clean()->isRequired()->isEmail();

/**
 * Sanitise field
 * This should be added to all fields that include any sort of user input/selection
 */
$formVal->validate('some-field-name')->clean();

/**
 * Mandatory field
 * Flag fields as mandatory
 */
$formVal->validate('some-field-name')->isRequired();

/**
 * Validate input value as a valid email address
 */
$formVal->validate('some-field-name')->isEmail();

/**
 * Validate input value as a password, using set rules set
 * - MinCharacters
 * - Max Characters
 * - Require Uppercase Character
 */
$formVal->validate('some-field-name')->isPassword(6,20,false);

/**
 * Validate as a URL
 */
$formVal->validate('website')->clean()->isURL();

/**
 * Validate as numeric, or zero
 * - optionally validating within a set range
 */
$formVal->validate('age')->isNumber();
//$formVal->validate('age')->isNumber(array(10,99));

/**
 * Ensure that X number of check-box options have been selected
 */
$formVal->validate('some-checkbox-group-name')->checkboxGroupRequired(2);

File Upload Method

Optional validation of file uploads

/**
 * Optional
 * --------
 * Override default options to allow configuration
 */
$options = [];
$options['path']          = 'uploads/';
$options['allow']         = array('txt');
$options['disallow']      = array('pdf');
$options['maxFilesize']   = 1; // 1Mb

/**
 * Process File Upload, 
 *  returning an error to add to the existing array
 *  or a success message
 */

$fileUpload = new FileValidator('fileupload');
$fileUpload->setOptions($options);

if($fileUpload->uploadFile()){
    $fields['fileupload'] = $fileUpload->getSuccess();
} else {
    $errors['fileupload'] = $fileUpload->getError();
}

Return Methods

The getErrors() and getValues() methods are available to the processing file to return arrays for processing

/**
 * Get an array of error messages in:
 *  $fieldname => $message
 * 
 */
$errors = $formVal->getErrors();


/**
 * Get an array of cleaned form fields in:
 *  $fieldname => $value
 */
$fields = $formVal->getFields();

See fully working example in example.php