Online PHP editor | output for Z5C8R

<?php function object_diff($source, $target) { if (!is_object($source) || !is_object($target) || !($source instanceof $target)) { return null; } $sourceProperties = array(); $targetProperties = array(); $sourceReflection = new ReflectionObject($source); $targetReflection = new ReflectionObject($target); foreach ($sourceReflection->getProperties() as $sourceProperty) { $sourceProperty->setAccessible(true); $sourceProperties[$sourceProperty->getName()] = $sourceProperty->getValue($source); } foreach ($targetReflection->getProperties() as $targetProperty) { $targetProperty->setAccessible(true); $targetProperties[$targetProperty->getName()] = $targetProperty->getValue($target); } return array_diff_assoc($sourceProperties, $targetProperties); } class Foo { private $a, $b, $c; public function __construct($a, $b, $c) { $this->a = $a; $this->b = $b; $this->c = $c; } } $foo1 = new Foo('1', '2', '3'); $foo2 = new Foo('1', '3', '4'); var_dump(object_diff($foo1, $foo2));