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<?php function flatten_array($array, $flat = array()) { $ar = array(); foreach ($array as $i => $items) { foreach ($items as $key => $value) { $ar[$key.'-'.($i+1)] = $value; } } return $ar; } // this line generates a 10x10 multi-d array $a = array_fill(0, 10, array_fill(0, 10, 0)); $flat_array = flatten_array($a); var_dump($flat_array);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(100) { ["0-1"]=> int(0) ["1-1"]=> int(0) ["2-1"]=> int(0) ["3-1"]=> int(0) ["4-1"]=> int(0) ["5-1"]=> int(0) ["6-1"]=> int(0) ["7-1"]=> int(0) ["8-1"]=> int(0) ["9-1"]=> int(0) ["0-2"]=> int(0) ["1-2"]=> int(0) ["2-2"]=> int(0) ["3-2"]=> int(0) ["4-2"]=> int(0) ["5-2"]=> int(0) ["6-2"]=> int(0) ["7-2"]=> int(0) ["8-2"]=> int(0) ["9-2"]=> int(0) ["0-3"]=> int(0) ["1-3"]=> int(0) ["2-3"]=> int(0) ["3-3"]=> int(0) ["4-3"]=> int(0) ["5-3"]=> int(0) ["6-3"]=> int(0) ["7-3"]=> int(0) ["8-3"]=> int(0) ["9-3"]=> int(0) ["0-4"]=> int(0) ["1-4"]=> int(0) ["2-4"]=> int(0) ["3-4"]=> int(0) ["4-4"]=> int(0) ["5-4"]=> int(0) ["6-4"]=> int(0) ["7-4"]=> int(0) ["8-4"]=> int(0) ["9-4"]=> int(0) ["0-5"]=> int(0) ["1-5"]=> int(0) ["2-5"]=> int(0) ["3-5"]=> int(0) ["4-5"]=> int(0) ["5-5"]=> int(0) ["6-5"]=> int(0) ["7-5"]=> int(0) ["8-5"]=> int(0) ["9-5"]=> int(0) ["0-6"]=> int(0) ["1-6"]=> int(0) ["2-6"]=> int(0) ["3-6"]=> int(0) ["4-6"]=> int(0) ["5-6"]=> int(0) ["6-6"]=> int(0) ["7-6"]=> int(0) ["8-6"]=> int(0) ["9-6"]=> int(0) ["0-7"]=> int(0) ["1-7"]=> int(0) ["2-7"]=> int(0) ["3-7"]=> int(0) ["4-7"]=> int(0) ["5-7"]=> int(0) ["6-7"]=> int(0) ["7-7"]=> int(0) ["8-7"]=> int(0) ["9-7"]=> int(0) ["0-8"]=> int(0) ["1-8"]=> int(0) ["2-8"]=> int(0) ["3-8"]=> int(0) ["4-8"]=> int(0) ["5-8"]=> int(0) ["6-8"]=> int(0) ["7-8"]=> int(0) ["8-8"]=> int(0) ["9-8"]=> int(0) ["0-9"]=> int(0) ["1-9"]=> int(0) ["2-9"]=> int(0) ["3-9"]=> int(0) ["4-9"]=> int(0) ["5-9"]=> int(0) ["6-9"]=> int(0) ["7-9"]=> int(0) ["8-9"]=> int(0) ["9-9"]=> int(0) ["0-10"]=> int(0) ["1-10"]=> int(0) ["2-10"]=> int(0) ["3-10"]=> int(0) ["4-10"]=> int(0) ["5-10"]=> int(0) ["6-10"]=> int(0) ["7-10"]=> int(0) ["8-10"]=> int(0) ["9-10"]=> int(0) }

preferences:
233.93 ms | 414 KiB | 327 Q