ArrayObject::exchangeArray Exchange the array for another one. &reftitle.description; arrayArrayObject::exchangeArray mixedinput Exchange the current array with another array or object. &reftitle.parameters; input The new array or object to exchange with the current array. &reftitle.returnvalues; Returns the old array. &reftitle.examples; 1, "oranges" => 4, "bananas" => 5, "apples" => 10); // Array of locations in Europe $locations = array('Amsterdam', 'Paris', 'London'); $fruitsArrayObject = new ArrayObject($fruits); // Now exchange fruits for locations $old = $fruitsArrayObject->exchangeArray($locations); print_r($old); print_r($fruitsArrayObject); ?> ]]> &example.outputs; 1 [oranges] => 4 [bananas] => 5 [apples] => 10 ) ArrayObject Object ( [0] => Amsterdam [1] => Paris [2] => London ) ]]>