Throwing exception in __autoload();

[Mchl]

Manual says:

 

Note: Exceptions thrown in __autoload function cannot be caught in the catch block and results in a fatal error.

 

However when I run this code:

 

<?php
function __autoload($className) {
  if(file_exists("/classes/$className.class.php")) {  
    require_once("/classes/$className.class.php"); 
  } else {
throw new Exception("File /classes/$className.class.php does not exist"); 
  }

}

try {
$foo = new foo();
} catch(Exception $e) {
echo 'Exception caught:'.PHP_EOL;
echo $e->getMessage();
}

 

no fatal error occurs. Exception is handled as usual. I am doing this in 5.3 right now, but IIRC this was also a case in 5.2

[salathe]

I think (my memory isn't what it used to be) this might have been "fixed" for 5.3.0... I'll take a look-see for more info.

 

P.S. Yep looks like 5.2 still suffers (just tried 5.2.11) and 5.3 (tested on 5.3.0) works as your post says.  If that's the case, the note on the manual page will get amended.

[Mchl]

Thanks for that info.

I vaguely remember 5.2.x also behaving in this way... but then my memory also isn't what it used to be. And I used to have quite a mess in php installations at one time.

[Mchl]

From PHP 5.3 changelog:

 

[*] Added delaying exceptions in SPL's autoload mechanism. (Marcus)

 

Also related:

[*] Fixed bug #47714 (autoloading classes inside exception_handler leads to crashes). (Dmitry)