The difference between Spl_autoload_register and __autoload

Source: Internet
Author: User

__autoload

Automatically takes the name of the class as an argument when instantiating an undefined class , and then loads the include file

function $class  $file$class . '. class.php ';    if Is_file ($file)) {    require_once(' Incpath ').  $file);}   }   $obj New printit (); $obj->doprint ();

  Instantiate the PrintIt class, ' PrintIt ' as a parameter, pass it to __autoload (), and load it as a file name

Spl_autoload_register

You can customize the name of the load function by simply calling this function when it needs to be registered as the loader, registering the custom load function as the loader

Function

 function  loadprint ( $class    $file  =  $class .   '. class.php ' ;  if  (is_file  ( $file   require_once  ( $file  );  }} spl_autoload_register ( ' loadprint ' );   $obj  = new   PrintIt ();   $obj ->doprint (); 

Object methods

classTest { Public Static functionLoadprint ($class ) {  $file=$class. '. class.php '; if(Is_file($file)) {     require_once($file); }}} spl_autoload_register (Array(' Test ', ' Loadprint ')  );//Another way: Spl_autoload_register ("Test::loadprint"); $obj=Newprintit ();$obj->doprint ();

 Spl_autoload_register This approach provides a more flexible way to register the loader

You can register the loader separately, depending on the scene

The difference between Spl_autoload_register and __autoload

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