Online PHP editor | output for P75JJ

<?php $data = [ [ 'rates' => [1, 2], 'origin' => 1, ], [ 'rates' => [3, 4], 'origin' => 2, ], [ 'rates' => [5], 'origin' => 3, ], ]; // нужно получить все возможные комбинации, как показано ниже $expected1 = [ [ [ 'rate' => 1, 'origin' => 1, ], [ 'rate' => 3, 'origin' => 2, ], [ 'rate' => 5, 'origin' => 3, ], ], [ [ 'rate' => 1, 'origin' => 1, ], [ 'rate' => 4, 'origin' => 2, ], [ 'rate' => 5, 'origin' => 3, ], ], [ [ 'rate' => 2, 'origin' => 1, ], [ 'rate' => 3, 'origin' => 2, ], [ 'rate' => 5, 'origin' => 3, ], ], [ [ 'rate' => 2, 'origin' => 1, ], [ 'rate' => 4, 'origin' => 2, ], [ 'rate' => 5, 'origin' => 3, ], ], ]; $expected = []; $iteratorCount = 0; foreach ($data as $key => $block) { $data[$key]['iterator'] = 0; $iteratorCount++; } $tempCounter = 0; while ($tempCounter < $iteratorCount) { $temp = []; $tempCounter = 0; foreach ($data as $key => $block) { $temp[] = ['rate' => $block['rates'][$block['iterator']],'origin' => => $block['origin']]; } $expected[] = $temp; foreach ($data as $key => $block) { if ($block['iterator'] + 1 < count($block['rates'])) { $data[$key]['iterator']++; break; } else { $data[$key]['iterator'] = 0; $tempCounter++; } } } print_r($expected);