3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $assoc = array( "a" => 1, "b" => 0, 0 => 0 ); function is_assoc($array){ $sorted = ksort($array); $sorted = array_keys($sorted); return !ctype_digit(implode('', $sorted)); } echo is_assoc($assoc); ?>
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: array_keys() expects parameter 1 to be array, boolean given in /in/A1mAM on line 11 Warning: implode(): Invalid arguments passed in /in/A1mAM on line 12 1
Output for hhvm-3.10.0 - 3.12.0
Warning: array_keys() expects parameter 1 to be an array or collection in /in/A1mAM on line 11 Warning: Invalid operand type was used: implode() expects a container as one of the arguments in /in/A1mAM on line 12 1
Output for 5.2.5 - 5.2.17
Warning: array_keys(): The first argument should be an array in /in/A1mAM on line 11 Warning: implode(): Invalid arguments passed in /in/A1mAM on line 12 1
Output for 4.3.2 - 5.2.4
Warning: array_keys(): The first argument should be an array in /in/A1mAM on line 11 Warning: implode(): Bad arguments. in /in/A1mAM on line 12 1
Output for 4.3.0 - 4.3.1
Warning: array_keys() [http://www.php.net/function.array-keys]: The first argument should be an array in /in/A1mAM on line 11 Warning: implode() [http://www.php.net/function.implode]: Bad arguments. in /in/A1mAM on line 12 1