Online PHP editor | refs for TeC96

<?php function object_diff($source, $target) { if (!is_object($source) || !is_object($target) || !($source instanceof $target)) { return null; } $sourceReflection = new ReflectionObject($source); $targetReflection = new ReflectionObject($target); $sourceProperties = array_map(function (ReflectionProperty $property) use ($source) { $property->setAccessible(true); return $property->getValue($source); }, $sourceReflection->getProperties()); $targetProperties = array_map(function (ReflectionProperty $property) use ($target) { $property->setAccessible(true); return $property->getValue($target); }, $targetReflection->getProperties()); return array_diff($sourceProperties, $targetProperties); } class Foo { private $a, $b, $c; public function __construct($a, $b, $c) { $this->a = $a; $this->c = $b; $this->b = $b; } } $foo1 = new Foo('a', 'b', 'c'); $foo2 = new Foo('a', 'b', 'd'); var_dump(object_diff($foo1, $foo2));