3v4l.org

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<?php $array_expression = array('s'=>'b','y'=>'g'); foreach ($array_expression as $key => $value) { show(':' . $key, $value); } var_dump($array_expression); function show($a,$b){ $a = 'sss'; $b = 'bbb'; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(2) { ["s"]=> string(1) "b" ["y"]=> string(1) "g" }
preferences:
240.99 ms | 406 KiB | 314 Q