3v4l.org

run code in 300+ PHP versions simultaneously
<?php $myArray = [ 'person_1@gmail.com' => [ '2017-01-05' =>[ 'this is line one', 'this is line two', ], '2016-05-05' => [ 'this is another line', 'and this is a fourth line' ], '2017-07-10' => [ 'more lines', 'yet another line' ], ], ['person_2@gmail.com'] => [ '2015-01-01' => ['line for person_2'], ] ]; foreach($myArray as $key=>$value){ ksort($myArray[$key]); } print_r($myArray);
Output for 7.0.18 - 7.0.31, 7.1.4 - 7.1.21, 7.2.0 - 7.2.9
Fatal error: Illegal offset type in /in/3elk3 on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.17, 7.1.0 - 7.1.3
Fatal error: Illegal offset type in /in/3elk3 on line 17
Process exited with code 255.
preferences:
199.71 ms | 1395 KiB | 71 Q