Form Class

<?php
/**
 * Author: Peter Dragicevic [peter-91@hotmail.de]
 * Authors-Website: http://petschko.org/
 * Date: 25.11.2015
 * Time: 12:45
 * Update: 09.04.2016
 * Version: 1.1.4 (Changed Website)
 * 1.1.3 (Reformat Code)
 *
 * Notes: Create Forms with this class
 */

/**
 * Class Form
 */
class Form {
    private $fields = array();
    private $name;
    private $returnMsg;
    private $isPost;
    private $upload;

    /**
     * Create a new instance of forms
     *
     * @param array $fields - object array of form objects
     * @param string $name - name of the form
     * @param bool|string $returnMsg - return message for the user - false means no message
     * @param bool $isPost - set the method true = post false = get
     * @param bool $uploadForm - set this to true if you uploading some with this form
     */
    public function __construct($fields, $name, $returnMsg = false, $isPost = true, $uploadForm = false) {
        $this->setFields($fields);
        $this->setName($name);
        $this->setReturnMsg($returnMsg);
        $this->setIsPost($isPost);
        $this->setUpload($uploadForm);
        $this->setField('formName', FormField::createNewField('formName', 'hidden', $name, $isPost));
    }

    /**
     * Clears Memory
     */
    public function __destruct() {
        unset($this->fields);
        unset($this->name);
        unset($this->returnMsg);
        unset($this->isPost);
        unset($this->upload);
    }

    /**
     * Returns the Fields array
     *
     * @return array - get the object array of the form
     */
    private function getFields() {
        return $this->fields;
    }

    /**
     * Set the Field array
     *
     * @param array $fields - set the object array of the form
     */
    private function setFields($fields) {
        $this->fields = $fields;
    }

    /**
     * Get the Name
     *
     * @return string - the name of the form
     */
    public function getName() {
        return $this->name;
    }

    /**
     * Set the Name
     *
     * @param string $name - set the name of the form
     */
    private function setName($name) {
        $this->name = $name;
    }

    /**
     * Get the current message of the form object
     *
     * @return string|bool - the (error/success) message of the form - false means no message
     */
    public function getReturnMsg() {
        return $this->returnMsg;
    }

    /**
     * Setup an error/success message
     *
     * @param string|bool $returnMsg - set the return message for the user - false means no message
     */
    public function setReturnMsg($returnMsg) {
        $this->returnMsg = $returnMsg;
    }

    /**
     * Get an field object
     *
     * @param string $fieldName - name of the field
     * @return FormField - field object
     */
    public function getField($fieldName) {
        return $this->fields[$fieldName];
    }

    /**
     * Set a new field object or overwrite it
     *
     * @param string $fieldName - name of the field object
     * @param FormField $object - the field object
     */
    public function setField($fieldName, $object) {
        $this->fields[$fieldName] = $object;
    }

    /**
     * Get isPost (Method type of this class)
     *
     * @return bool - the method of the form get = false | post = true
     */
    public function getIsPost() {
        return $this->isPost;
    }

    /**
     * Set isPost (Method type of this class)
     *
     * @param bool $isPost - the method of the form get|post
     */
    private function setIsPost($isPost) {
        $this->isPost = $isPost;
    }

    /**
     * Get is Upload
     *
     * @return bool - is this an upload form = true | not = false
     */
    public function isUpload() {
        return $this->upload;
    }

    /**
     * Set isUpload
     *
     * @param bool $upload - is this an upload form = true | no = false
     */
    private function setUpload($upload) {
        $this->upload = $upload;
    }

    /**
     * Check if the Form was submitted
     *
     * @return bool - is this form send by post/get = true | false = not send
     */
    public function isSend() {
        if($this->getIsPost()) {
            if(! isset($_POST['formName']))
                $_POST['formName'] = false;

            // Check if form is send
            if($_POST['formName'] == $this->getName())
                return true;
            return false;
        } else {
            if(! isset($_GET['formName']))
                $_GET['formName'] = false;

            // Check if form is send
            if($_GET['formName'] == $this->getName())
                return true;
            return false;
        }
    }

    /**
     * Checks all fields in this Form, if they're filled out correctly
     *
     * @return array|bool - error array (errorFieldName, errorReason[, optional info like maxLen etc]) or true on success
     */
    public function checkValues() {

        // Check all vars if they are filled out correctly
        foreach($this->getFields() as $field) {

            // Trim data
            $field->setValue(trim($field->getValue()));

            // Check if var is filled out, if required
            if($field->isRequired() && ! $field->getValue())
                return array($field->getName(), 'required');

            // Check if text is to long
            if($field->getMaxLen() < $field->getCurrentLen() && $field->getMaxLen() != 0)
                return array($field->getName(), 'maxlen', $field->getMaxLen());

            // Check if field is to short (only on req fields)
            if($field->getMinLen() > $field->getCurrentLen() && ($field->isRequired() || $field->getCurrentLen() > 0) && $field->getMinLen() != 0)
                return array($field->getName(), 'minlen', $field->getMinLen());

            // Check if data type is correct
            if(! $field->checkDataType() && $field->getCurrentLen() > 0)
                return array($field->getName(), 'datatype', $field->getDataType());
        }

        return true;
    }
}