Introduction to the PHP class "forms and validation"

Example 1: contact form

Source Code

$fav = new formsAndValidation('ex1');
$fav->setTarget('index.php');
$fav->addtitle('Example 1: contact form');

if(isset($_POST['ex1']) AND $_POST['ex1'] == 'send'){
  $fav->save2Session();
  $fav->isEmpty('name', 'please enter your name');
  $fav->isEmailAddress('email', 'please enter a valid eMail');
  $fav->isEmpty('message', 'please enter a message');
  if( $fav->getErrorCount() == 0 ){ 
    $fav->showSuccess('Thank you', 'Your message was send to us. ');
  }
}

$fav->addParagraph('Please fill out the form and send us your message...');
$fav->addTextInput('Your name', 'name');
$fav->addTextInput('Your eMail', 'email');
$fav->addTextArea('Your message', 'message');
$fav->showForm('Send request'); 

Example 2: order a pizza

Source Code

$fav = new formsAndValidation('ex2');
$fav->setTarget('index.php');
$fav->addtitle('Example 2: order a pizza');

if(isset($_POST['ex2']) AND $_POST['ex2'] == 'send'){
  $fav->save2Session();
  $fav->isSelected('size', 'no size?');
  $fav->isSelected('spicy', 'spicy?');
  $fav->isEmpty('address', 'no address?');
  if( $fav->getErrorCount() == 0 ){ 
    $fav->showSuccess('Pizza is coming...');
    $fav->cleanSession();
  }
}

$fav->addParagraph('Please choose the size of your pizza and the desired topings');
$fav->addSelectList('size?', 'size', array('', '28', '30', '36') );
$fav->addCheckboxes('topings?', 'topings', array('Ham', 'Olives', 'extra cheese') );
$fav->addRadioButtons('spicy?', 'spicy', array('h' => 'hot like hell', 'm' => 'medium', 'n' => 'no spices') );
$fav->addTextArea('address?', 'address');
$fav->showForm('Send order'); 

Example 3: more predefined validations

Source Code

$fav = new formsAndValidation('ex3');
$fav->setTarget('index.php');
$fav->setShowErrorsOnTop(true);
$fav->setShowErrorsInForm(false);
$fav->loadDatepicker(true);
$fav->addtitle('Example 3: more predefined validations');

if(isset($_POST['ex3']) AND $_POST['ex3'] == 'send'){
  $fav->save2Session();
  $fav->isFutureDate('date', 'add a future date');
  $fav->isValidDate('date', 'use format mm/dd/YYYY');
  $fav->isEmpty('password', 'add a password with 8 or more letters', '8');
  $fav->isWithinRange('5dig', 'value is not a 5 digit number', 10000, 99999);
  $fav->isFile('upload', 'add a file');
  $fav->checkReload('please do not reload.');
  if( $fav->getErrorCount() == 0 ){ 
    $fav->showSuccess('Perfect', 'more than perfect...');
    $fav->cleanSession('ex3');
  }
}

$fav->addTextInput('Choose a date', 'date', '', array('id' => 'datepicker'));
$fav->addPassword('Passwort', 'password', '', '', 'test');
$fav->addHeadline('the following input fields are mandatory!');
$fav->addTextInput('5 digit number', '5dig', '');
$fav->addDefaultValue('gender', 'f');
$fav->addRadioButtons('Gender', 'gender', array('m' => 'male', 'f' => 'female'));	
$fav->addUpload('File', 'upload');
$fav->showForm('send'); 

Example 4: define own validations

Source Code

$fav = new formsAndValidation('ex4');
$fav->setTarget('index.php');
$fav->addtitle('Example 4: define own validations');

if(isset($_POST['ex4']) AND $_POST['ex4'] == 'send'){
  $fav->save2Session();
  $fav->checkWithRegExpression('regExp', 'use US phone format', '/\(?\d{3}\)?[-\s.]?\d{3}[-\s.]\d{4}/x');
  $fav->checkWithOwnValidation(array('field1', 'field2'), 'Number 1 is not equal to number 2', '$field1 == $field2');
  if( $fav->getErrorCount() == 0 ){ 
    $fav->showSuccess('Perfect', 'more than perfect...');
    $fav->cleanSession('ex4');
  }
}

$fav->addTextInput('Phone number', 'regExp', '', '', 'use US format (###)###-####');
$fav->addTextInput('Number 1', 'field1');
$fav->addTextInput('Number 2', 'field2');
$fav->showForm('send');