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<?php $array = array( array( 'file' => 'file1', 'line' => 1, 'message' => 'foo' ), array( 'file' => 'file1', 'line' => 1, 'message' => 'bar' ) ); usort($array, function($a, $b) { if ($a['file'] !== $b['file']) { return strcmp($a['file'], $b['file']); } else if ($a['line'] === $b['line']) { return 0; } else { return ($a['line'] < $b['line'] ? -1 : 1); } } ); var_dump($array);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> array(3) { ["file"]=> string(5) "file1" ["line"]=> int(1) ["message"]=> string(3) "foo" } [1]=> array(3) { ["file"]=> string(5) "file1" ["line"]=> int(1) ["message"]=> string(3) "bar" } }

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