Online PHP editor | output for sgfiJ

@ 2013-12-04T16:00:54Z

<?php

function getGrandParentClass($object, $level = NULL)
{
    $gp = $object = get_class($object);
    $isNull = is_null($level);
    $j = 0;
   
    while(get_parent_class($gp) && ($isNull || $level > $j))
    {        
        $gp = get_parent_class($gp);
        $j++;
       
        if(!get_parent_class($gp) && !$isNull && $level > $j)
        return false;
    }
   
    return $gp == $object ? false : $gp;
}

    class A {}
    class B extends A {}
    class C extends B {}
    class D extends C {}
     
     
    var_dump(getGrandParentClass(new A())); // false
   var_dump(getGrandParentClass(new D(), [-1]));

Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: bool(false) bool(false)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '[' in /in/sgfiJ on line 28
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected '[' in /in/sgfiJ on line 28
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/sgfiJ on line 28
Process exited with code 255.

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