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run code in 150+ php & hhvm versions
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<?php $mas = (object) array('first'=>1, 'second'=>2); function f($m){ $m->first = 3; var_dump($m); return 'Done!'; } var_dump($mas); echo '============'; f($mas); echo ('----------'); var_dump($mas);
based on cjovi
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
object(stdClass)#1 (2) { ["first"]=> int(1) ["second"]=> int(2) } ============object(stdClass)#1 (2) { ["first"]=> int(3) ["second"]=> int(2) } ----------object(stdClass)#1 (2) { ["first"]=> int(3) ["second"]=> int(2) }
Output for 4.3.0 - 4.4.9
object(stdClass)(2) { ["first"]=> int(1) ["second"]=> int(2) } ============object(stdClass)(2) { ["first"]=> int(3) ["second"]=> int(2) } ----------object(stdClass)(2) { ["first"]=> int(1) ["second"]=> int(2) }