Question

For example:

I have a object created with $object = new stdClass(); it’s passed onto a function.

My question is whether the memory allocated for this object is ever freed, if so when does it get freed.

Also how will one check for these changes to memory.

I manually unset($object); right now, just to be safe.

Answer 1

Objects are destroyed on the end of the script execution. You can try it out:

<?php

class Test  
{
    function __construct()
    {
        echo "Construct"; 
    }

    function __destruct()
    {
        echo "Destruct";
    }
}

$test = new Test();

?>

When calling this script in the browser you get the Construct and Destruct output which proves that the object was successfully destroyed on the end of script execution.