Example:
<?php
spl_autoload_register(function($className) {
var_dump($className);
});
//Output: ManuallyCalledClass
spl_autoload_call('ManuallyCalledClass');
?>
(PHP 5 >= 5.1.2, PHP 7)
spl_autoload_call — 尝试调用所有已注册的__autoload()函数来装载请求类
$class_name
)可以直接在程序中手动调用此函数来使用所有已注册的__autoload函数装载类或接口。
class_name搜索的类名。
没有返回值。
Example:
<?php
spl_autoload_register(function($className) {
var_dump($className);
});
//Output: ManuallyCalledClass
spl_autoload_call('ManuallyCalledClass');
?>
It should be noted, that calling spl_autoload_call on a child class, and then on its parent class, throws a fatal error.
This happens because autoloading the child class also loads the class it extends. And since spl_autoload_call forcibly calls the registered autoload function(s), not taking into account whether the class exists, a fatal error is thrown:
File: child.class.php
<?php
class Child extends Parent () {
public function __construct () {
parent::__construct();
}
}
?>
File: parent.class.php
<?php
class Parent () {
public function __construct () {
}
}
?>
File: autoload.php
<?php
/* works fine */
spl_autoload_call('Child');
/* throws: Fatal error: Cannot redeclare class Parent in /parent.class.php on line 2 */
spl_autoload_call('Parent');
?>