Callback function when class not found

[jojojobbins]

Hi. OK I imagine this has been answered many times before, but I am having trouble finding this info.

I was wondering how you could go about setting a callback, so every time a class can not be found a function can be called (said function would the go about including the missing class). It would also be fine if even a callback could be defined when an object is being instantiated with new.

Thank-you.

[drawmack]

You'd have to write your own something like

<?php
$myClass = myNew('class');


function myNew($class) {
    if(class_exists($class)
        return new $class();

//code to include class
return new $class();
} //end myNew
?>

Of course the real function is more complex then this since it also has to account for parameters to the class.

[jojojobbins]

Hi. Thanks Drawmack.

So there is nothing like if you where unserialising and you didn't have the class defined:

function _autoload($className)
{
print("Loading class $className");
@include_once("class.$classname.php");
}

ini_set('unserialize_callback_func', '_autoload');

Your method makes a lot of sense though.

[jojojobbins]

Funnily enough I found this:

function __autoload($classname)

which is called when it can't find the class definition.