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run code in 150+ php & hhvm versions
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<?php $a = json_encode(array('sleep' => 123)); $b = json_encode(array('sleep' => 987)); $logs = array(array('date' => '2014-01-01', 'data' => $a), array('date' => '2015-01-01', 'data' => $b)); $result = array_reduce($logs, function ($cur, $x) { var_dump($x); //$cur[$x] = $x; return $cur; }, array()); var_dump($result);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(2) { ["date"]=> string(10) "2014-01-01" ["data"]=> string(13) "{"sleep":123}" } array(2) { ["date"]=> string(10) "2015-01-01" ["data"]=> string(13) "{"sleep":987}" } array(0) { }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/X9ok4 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/X9ok4 on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/X9ok4 on line 6
Process exited with code 255.