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<?php $input = array( array( 'username' => 'matt' ) ); print_r ($input); print_r(', ', array_map(function ($entry) { return $entry['username']; }, $input));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [username] => matt ) ) Fatal error: Uncaught TypeError: print_r(): Argument #2 ($return) must be of type bool, array given in /in/a2SkH:8 Stack trace: #0 /in/a2SkH(8): print_r(', ', Array) #1 {main} thrown in /in/a2SkH on line 8
Process exited with code 255.

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