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<?php $sort_dates = function($a, $b) { $a = strtotime($a['birthday']); $b = strtotime($b['birthday']); if ($a == $b) { return 0; } return ($a < $b) ? -1 : 1; }; usort($upcoming, $sort_dates);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: usort(): Argument #1 ($array) must be of type array, null given in /in/r27jF:13 Stack trace: #0 /in/r27jF(13): usort(NULL, Object(Closure)) #1 {main} thrown in /in/r27jF on line 13
Process exited with code 255.

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