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<?php // Everything you enter here will be executed by our servers. Try it! $data = array( array('a', 'b', 'c', 'd', 'e'), array('f', 'g', 'h', 'i', 'j'), array('k', 'l', 'm', 'n', 'o'), array('p', 'q', 'r') ); $width = count($data[0]); // 5 $height = count($data); // 4 $total = $width * $height; // 20 $new_data = array(); for($i = 0; $i < $total; $i++) { $old_x = floor($i / $width); // integer division $old_y = $i % $width; // modulo $new_x = $i % $height; // modulo $new_y = floor($i / $height); // integer division if (!isset($new_data[$new_x])) { $new_data[$new_x] = array(); } if (isset($data[$old_x][$old_y])) { $new_data[$new_x][$new_y] = $data[$old_x][$old_y]; } } print_r($new_data);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => a [1] => e [2] => i [3] => m [4] => q ) [1] => Array ( [0] => b [1] => f [2] => j [3] => n [4] => r ) [2] => Array ( [0] => c [1] => g [2] => k [3] => o ) [3] => Array ( [0] => d [1] => h [2] => l [3] => p ) )

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