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run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(E_ALL); function setDefault(&$variable, $default) { if (!isset($variable)) { $variable = $default; } } $foo = array( 'foo' => 'oof' ); //setDefault($foo['sub']['arrays']['are']['pretty']['cool'], 0); $foo['sub']['arrays']['are']['pretty']['cool'] = 1; print_r($foo); ?>
Output for 4.3.0 - 7.1.0
Array ( [foo] => oof [sub] => Array ( [arrays] => Array ( [are] => Array ( [pretty] => Array ( [cool] => 1 ) ) ) ) )