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Php versions – Class Extends Fatal error: Class 'DatabaseObject' not found

I’ve been following a PHP OOP course of LinkedIn. When I arrive to “Inheritance” part, the code in my PC fails and I cannot fix it.

The code has an auto load in the very first file.

This is when the project fails. It Never failed before, but when I arrive to inheritance, it fails.

Example: Class B extends A. This fails.

I’ve tried the following:

  1. Add __DIR__ to the autoload. Some warnings disappear, but the error still alive.
  2. Change php tag <?php to short version <?
  3. Change permissions to 777 (755 by default).

I expect to load the view called bicycles.php. A table with all the bicycles. This view works always, but in the moment I use inheritance, it fails.

initialize.php

<?php
    foreach(glob('/classes/*.class.php') as $file) {
    require_once($file);
  }

  // Autoload class definitions
  function my_autoload($class) {
    if(preg_match('/Aw+Z/', $class)) {
      include('classes/' . $class . '.class.php');
    }
  }
  spl_autoload_register('my_autoload');

  $database = db_connect();
  DatabaseObject::set_database($database);
?>

Parent Class: DatabaseObject

<?php
    class DatabaseObject {

          static protected $database;
          static protected $table_name = "";
          static protected $columns = [];
          public $errors = [];
  }
?>

Child Class: Bicycle

<?php


class Bicycle extends DatabaseObject {

  static protected $table_name = 'bicycles';
  static protected $db_columns = ['id', 'brand', 'model', 'year', 'category', 'color', 'gender', 'price', 'weight_kg', 'condition_id', 'description'];

  public $id;
  public $brand;
  public $model;
  public $year;
  public $category;
  public $color;
  public $description;
  public $gender;
  public $price;
  public $weight_kg;
  public $condition_id;

  public const CATEGORIES = ['Road', 'Mountain', 'Hybrid', 'Cruiser', 'City', 'BMX'];

  public const GENDERS = ['Mens', 'Womens', 'Unisex'];

  public const CONDITION_OPTIONS = [
    1 => 'Beat up',
    2 => 'Decent',
    3 => 'Good',
    4 => 'Great',
    5 => 'Like New'
  ];

  public function __construct($args=[]) {
    //$this->brand = isset($args['brand']) ? $args['brand'] : '';
    $this->brand = $args['brand'] ?? '';
    $this->model = $args['model'] ?? '';
    $this->year = $args['year'] ?? '';
    $this->category = $args['category'] ?? '';
    $this->color = $args['color'] ?? '';
    $this->description = $args['description'] ?? '';
    $this->gender = $args['gender'] ?? '';
    $this->price = $args['price'] ?? 0;
    $this->weight_kg = $args['weight_kg'] ?? 0.0;
    $this->condition_id = $args['condition_id'] ?? 3;

    // Caution: allows private/protected properties to be set
    // foreach($args as $k => $v) {
    //   if(property_exists($this, $k)) {
    //     $this->$k = $v;
    //   }
    // }
  }
?>

Errors and Warnings

Warning: include(classes/DatabaseObject.class.php): failed to open stream: No such file or directory in /home/……………./chain_gang/private/initialize.php on line 45

Warning: include(): Failed opening ‘classes/DatabaseObject.class.php’ for inclusion (include_path=’.:/usr/share/php’) in /home/…………/chain_gang/private/initialize.php on line 45

Fatal error: Uncaught Error: Class ‘DatabaseObject’ not found in /home/…………../chain_gang/private/initialize.php:51 Stack trace: #0 /home/……………./chain_gang/public/staff/bicycles/index.php(1): require_once() #1 {main} thrown in /home/……………../chain_gang/private/initialize.php on line 51

Project directory:

enter image description here

PS: The codes examples are not complete at all. Only the most important part I think.

Tags:

2

Answers


  1. 0

    There is a } missing after the declaration of the DatabaseObject class

    Note that your autoloader is not usefull because you do a require_once of all the classes in the /classes directory 😉

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  2. 0

    It’s working for me, adding strtoupper after glob.

    // Load class definitions manually
// -> Individually
// require_once('classes/song.class.php');
// -> All classes in directory
foreach (glob (strtoupper('Controller/*.Controller.php')) as $file) {
    require_once($file);
}

    So the error message disappeared.

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