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run code in 150+ php & hhvm versions
Bugs & Features
<?php $data = [ [['foo'=>''], ['bar'=>'a']], [['foo'=>'b'], ['bar'=>'c']], [['foo'=>'e'], ['bar'=>'']] ]; $data = array_filter($data, function($x) { return array_filter($x, function($y) { return array_filter($y) == $y; }) == $x; }); var_dump($data);
Output for 5.4.0 - 7.1.0
array(1) { [1]=> array(2) { [0]=> array(1) { ["foo"]=> string(1) "b" } [1]=> array(1) { ["bar"]=> string(1) "c" } } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/9MLoP on line 2
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 '[' in /in/9MLoP on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9MLoP on line 2
Process exited with code 255.