[RESOLVED] Sorting objects

[vikkevest]

Hello, I need to sort a list of objects by a attribute they contain. Lets say I have class Person with attribute age. I then want to sort them by age. My solution was to make my own function to sort them with usort().

function sortByAge($objectA, $object😎
{
if($objectA->age < $objectB->age)
return $objectA;
}

It works fine, its just that I recieve these warnings for each object:

Notice: Object of class Player could not be converted to int in \web\www\script.php on line 108

Is there a better solution, or should I just ignore the warnings? in that case how?

Thanks!

[laserlight]

Read the PHP manual's documentation on [man]usort/man. Notice that the comparison function is supposed to return an integer. I would suggest:

function sortByAge($objectA, $objectB)
{
    return ($objectA->age < $objectB->age)
        ? -1 : ($objectA->age > $objectB->age);
}

Also, instead of naming it sortByAge, I might name it compareByAge.