php custom autoload
<?php
//custom autoload without composer
$to_map = [
'App\' => 'app/',
'Core\' => 'Core/',
];
foreach($to_map as $prefix => $base_dir)
{
spl_autoload_register(function ($class) use ($prefix, $base_dir) {
$base_dir = __DIR__ . "/{$base_dir}";
$len = strlen($prefix);
if (strncmp($prefix, $class, $len) !== 0)
{
return;
}
$relative_class = substr($class, $len);
$file = $base_dir . str_replace('\', '/', $relative_class) . '.php';
if (file_exists($file))
{
require $file;
}
});
}