autoloader php
Example #1 Autoload example
This example attempts to load the classes MyClass1 and MyClass2 from the files MyClass1.php and MyClass2.php respectively.
<?php
spl_autoload_register(function ($class_name) {
include $class_name . '.php';
});
$obj = new MyClass1();
$obj2 = new MyClass2();
?>autoload.php
The introduction of spl_autoload_register() gave programmers
the ability to create an autoload chain,
a series of functions that can be called to try and load a class or interface.
For example:
<?php
function autoloadModel($className) {
$filename = "models/" . $className . ".php";
if (is_readable($filename)) {
require $filename;
}
}
function autoloadController($className) {
$filename = "controllers/" . $className . ".php";
if (is_readable($filename)) {
require $filename;
}
}
spl_autoload_register("autoloadModel");
spl_autoload_register("autoloadController");autoloading classes
improved version :
<?php
spl_autoload_register(function($className) {
$file = __DIR__ . '\' . $className . '.php';
$file = str_replace('\', DIRECTORY_SEPARATOR, $file);
if (file_exists($file)) {
include $file;
}
});Copyright © 2021 Codeinu
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