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run code in 200+ php & hhvm versions
Bugs & Features
<?php $queue = array("UMI","AOEY"); array_unshift($aueue,"UMER","AUNG"); print_r($queue); ?>
based on LOAkX
Output for 5.3.0 - 7.2.0
Warning: array_unshift() expects parameter 1 to be array, null given in /in/2BP4n on line 3 Array ( [0] => UMI [1] => AOEY )
Output for 4.3.2 - 5.2.17
Warning: array_unshift(): The first argument should be an array in /in/2BP4n on line 3 Array ( [0] => UMI [1] => AOEY )
Output for 4.3.0 - 4.3.1
Warning: array_unshift() [http://www.php.net/function.array-unshift]: The first argument should be an array in /in/2BP4n on line 3 Array ( [0] => UMI [1] => AOEY )