spl_autoload with namespace php - php

Question

I am makeing a small framework for scheduled job that are run by a nodejs external process. I would like to use an auto loader but for some reason data is not getting to it. I am also using namespaces. Here is what my folder structure looks like:
Library
|_ Core
|_ JobConfig.php
|_ Utilities
|_ Loader.php
|_ Scheduled
|_ SomeJob.php
|_ Config.php
My Config.php just has some definitions and an instance of my Loader.php.
Loader.php looks like:
public function __constructor()
{
spl_autoload_register(array($this, 'coreLoader'));
spl_autoload_register(array($this, 'utilitiesLoader'));
}
private function coreLoader($class)
{
echo $class;
return true;
}
private function utilitiesLoader($lass)
{
echo $class;
return true;
}
So for my SomeJob.php I am including Config.php and then try to instantiate JobConfig.php when it fails. My namespaces look like Library\Core\JobConfig and so on. I am not sure if this is the best approach without the ability to bootsrapt things. But I am not seeing the echo's from the loader before it fails.
Edit:
I tried the sugestion by #Layne but did not work. I am still getting a class not found and seems like the class in not getting in the spl stack. Here is a link to the code

Answer 1

If you actually use namespaces in the same way you're using your directory structure, this should be rather easy.
<?php
namespace Library {
spl_autoload_register('\Library\Autoloader::default_autoloader');
class Autoloader {
public static function default_autoloader($class) {
$class = ltrim($class, '\\');
$file = __DIR__ . '/../';
if ($lastNsPos = strrpos($class, '\\')) {
$namespace = substr($class, 0, $lastNsPos);
$class = substr($class, $lastNsPos + 1);
$file .= str_replace('\\', '/', $namespace) . '/';
}
$file .= $class . '.php';
include $file;
}
}
}
Put that into your Library directory and require it on a higher level. Hopefully I didn't mess that one up, didn't test it.
EDIT: Fixed path.

Answer 2

use this class to index of your project, just replace WP_CONTENT_DIR with another directory level to scan php files, this class automatically include files:
<?php
class autoloader
{
public static function instance()
{
static $instance = false;
if( $instance === false )
{
// Late static binding
$instance = new static();
}
return $instance;
}
/**
* #param $dir_level directory level is for file searching
* #param $php_files_json_name name of the file who all the PHP files will be stored inside it
*/
private function export_php_files($dir_level, $php_files_json_name)
{
$filePaths = array(mktime());
/**Get all files and directories using iterator.*/
$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir_level));
foreach ($iterator as $path) {
if (is_string(strval($path)) and pathinfo($path, PATHINFO_EXTENSION) == 'php') {
$filePaths[] = strval($path);
}
}
/**Encode and save php files dir in a local json file */
$fileOpen = fopen($dir_level . DIRECTORY_SEPARATOR . $php_files_json_name, 'w');
fwrite($fileOpen, json_encode($filePaths));
fclose($fileOpen);
}
/**
* #param $php_files_json_address json file contains all the PHP files inside it
* #param $class_file_name name of the class that was taken from #spl_autoload_register_register plus .php extension
* #return bool Succeeding end of work
*/
private function include_matching_files($php_files_json_address, $class_file_name)
{
static $files;
$inc_is_done = false;
if ($files == null) {
$files = json_decode(file_get_contents($php_files_json_address), false);
}
/**Include matching files here.*/
foreach ($files as $path) {
if (stripos($path, $class_file_name) !== false) {
require_once $path;
$inc_is_done = true;
}
}
return $inc_is_done;
}
/**
* #param $dir_level directory level is for file searching
* #param $class_name name of the class that was taken from #spl_autoload_register
* #param bool $try_for_new_files Try again to include new files, that this feature is #true in development mode
* it will renew including file each time after every 30 seconds #see $refresh_time.
* #return bool Succeeding end of work
*/
public function request_system_files($dir_level, $class_name, $try_for_new_files = false)
{
$php_files_json = 'phpfiles.json';
$php_files_json_address = $dir_level . DIRECTORY_SEPARATOR . $php_files_json;
$class_file_name = $class_name . '.php';
$files_refresh_time = 30;
/**Include required php files.*/
if (is_file($php_files_json_address)) {
$last_update = json_decode(file_get_contents($php_files_json_address), false)[0];
if ((mktime() - intval($last_update)) < $files_refresh_time || !$try_for_new_files) {
return $this->include_matching_files($php_files_json_address, $class_file_name);
}
}
$this->export_php_files($dir_level, $php_files_json);
return $this->include_matching_files($php_files_json_address, $class_file_name);
}
/**
* Make constructor private, so nobody can call "new Class".
*/
private function __construct()
{
}
/**
* Make clone magic method private, so nobody can clone instance.
*/
private function __clone()
{
}
/**
* Make sleep magic method private, so nobody can serialize instance.
*/
private function __sleep()
{
}
/**
* Make wakeup magic method private, so nobody can unserialize instance.
*/
private function __wakeup()
{
}
}
/**
* Register autoloader.
*/
try {
spl_autoload_register(function ($className) {
$autoloader = autoloader::instance();
return $autoloader->request_system_files(WP_CONTENT_DIR, $className, true);
});
} catch (Exception $e) {
var_dump($e);
die;
}