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<?php $init1 = [[1,1]]; $init2 = [[5,2]]; function addMovement($array) { $lastPos = end($array); $array[] = [$lastPos[0]+1, $lastPos[1]+2]; return $array; } $array = $init1; for ($i = 0; $i < 3; $i++) { $array = addMovement($array); } $array = array_merge($array, $init2); for ($i = 0; $i < 2; $i++) { $array = addMovement($array); } print_r($array);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
Array ( [0] => Array ( [0] => 1 [1] => 1 ) [1] => Array ( [0] => 2 [1] => 3 ) [2] => Array ( [0] => 3 [1] => 5 ) [3] => Array ( [0] => 4 [1] => 7 ) [4] => Array ( [0] => 5 [1] => 2 ) [5] => Array ( [0] => 6 [1] => 4 ) [6] => Array ( [0] => 7 [1] => 6 ) )

preferences:
130.92 ms | 2169 KiB | 4 Q