Online PHP editor | refs for 7NiNb

<?php $array = array( (object)array( 'first_name' => 'Léa', 'last_name' => 'Weber', ), (object)array( 'first_name' => 'Alexandre', 'last_name' => 'Dupont', ), (object)array( 'first_name' => 'Léa', 'last_name' => 'Zotal', ), (object)array( 'first_name' => 'Jérémie', 'last_name' => 'Hoffmann', ) ); usort($array, function($a, $b) { return [$a->last_name, $a->first_name] <=> [$b->last_name, $b->first_name]; }); var_export($array);