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run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = ''; $bar = array_shift($foo); var_dump($bar);
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: array_shift() expects parameter 1 to be array, string given in /in/Uno7A on line 4 NULL
Output for hhvm-3.10.0 - 3.12.0
Warning: array_shift() expects parameter 1 to be an array or mutable collection in /in/Uno7A on line 4 NULL
Output for 5.2.3 - 5.2.17
Warning: array_shift(): The argument should be an array in /in/Uno7A on line 4 NULL
Output for 4.4.3 - 5.2.2
<br /> <b>Warning</b>: array_shift() [<a href='function.array-shift'>function.array-shift</a>]: The argument should be an array in <b>/in/Uno7A</b> on line <b>4</b><br /> NULL
Output for 4.3.2 - 4.4.2
<br /> <b>Warning</b>: array_shift(): The argument should be an array in <b>/in/Uno7A</b> on line <b>4</b><br /> NULL
Output for 4.3.0 - 4.3.1
<br /> <b>Warning</b>: array_shift() [<a href='http://www.php.net/function.array-shift'>function.array-shift</a>]: The argument should be an array in <b>/in/Uno7A</b> on line <b>4</b><br /> NULL