//This is the object we want to find in the list.
$list->add($x);
$x = new TestClass(1);
$list->add($x);
$x = new TestClass(69);
$list->add($x);
$x = new TestClass(420);
$list->add($x);
$x = new TestClass(1337);
$list->add($x);
//Now try and find the object with the value we want
$object = $list->getByFunctionVale('getData', 90);
echo 'Found Object ' . $object->getData();
//Prints 90
//Using Strict Comparison (For Object based searching)
//Create the list
$list = new ArrayList('TestClass');
$sub_objectA = new TestClass('Whatever Sub Object A');
$sub_objectB = new TestClass('Whatever Sub Object B');
$sub_objectC = new TestClass('Whatever Sub Object C');
//Create our Objects
$x = new TestClass($sub_objectA);
$list->add($x);
$x = new TestClass($sub_objectB);
//We want to find this.
$list->add($x);
$x = new TestClass($sub_objectC);
$list->add($x);
$object = $list->getByFunctionVale('getData', $sub_objectB);
echo 'Found Object ' . $object->getData()->getData();
//Prints "Whatever Sub Object B"
