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run code in 150+ php & hhvm versions
Bugs & Features
<?php $assoc = array( "a" => 1, "b" => 0, 0 => 0 ); function is_assoc($in_array){ $test_array = ksort($in_array); return !ctype_digit( implode('', array_keys($test_array)) ); } echo is_assoc($assoc); ?>
Output for 5.3.0 - 7.1.0
Warning: array_keys() expects parameter 1 to be array, boolean given in /in/X8RpN on line 11 Warning: implode(): Invalid arguments passed in /in/X8RpN on line 11 1
Output for 5.2.5 - 5.2.17
Warning: array_keys(): The first argument should be an array in /in/X8RpN on line 11 Warning: implode(): Invalid arguments passed in /in/X8RpN on line 11 1
Output for 4.3.2 - 5.2.4
Warning: array_keys(): The first argument should be an array in /in/X8RpN on line 11 Warning: implode(): Bad arguments. in /in/X8RpN on line 11 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/X8RpN on line 11 Warning: implode() [http://www.php.net/function.implode]: Bad arguments. in /in/X8RpN on line 11 1