Funções para Classes/Objetos
__autoload magic function can also be used inside a class and have the class handle the inclusion of class files.
/********
index.php
********/
<?php
class foobar {
public function executeMe(){
function __autoload($classname){
include $classname . '.php';
}
}
}
$foo = new foobar();
$foo->executeMe();
some::foobar2(); //will output "hello! I'm static!"
$bar = new some();
$bar->foobar(); //will output "hello! I'm public!"
?>
/********
some.php
********/
<?php
class some {
public function foobar (){
echo "hello! I'm public!";
}
static function foobar2 (){
echo "hello! I'm static!";
}
}
?>
__autoload
(No version information available, might only be in SVN)
__autoload — Attempt to load undefined class
Descrição
void __autoload
( string $class
)
You can define this function to enable classes autoloading.
Parâmetros
- class
-
Name of the class to load
Valor Retornado
Não há valor retornado.
User Contributed Notes
__autoload
__autoload
carloagonzales at gmail dot com
04-Apr-2012 10:42
04-Apr-2012 10:42
qeremy
08-Mar-2012 12:01
08-Mar-2012 12:01
Even I have never been using this function, just a simple example in order to explain it;
./myClass.php
<?php
class myClass {
public function __construct() {
echo "myClass init'ed successfuly!!!";
}
}
?>
./index.php
<?php
// we've writen this code where we need
function __autoload($classname) {
$filename = "./". $classname .".php";
include_once($filename);
}
// we've called a class ***
$obj = new myClass();
?>
*** At this line, our "./myClass.php" will be included! This is the magic that we're wondering... And you get this result "myClass init'ed successfuly!!!".
So, if you call a class that named as myClass then a file will be included myClass.php if it exists (if not you get an include error normally). If you call Foo, Foo.php will be included, and so on...
And you don't need some code like this anymore;
<?php
include_once("./myClass.php");
include_once("./myFoo.php");
include_once("./myBar.php");
$obj = new myClass();
$foo = new Foo();
$bar = new Bar();
?>
Your class files will be included "automatically" when you call (init) them without these functions: "include, include_once, require, require_once".