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<?php class Test { private $items = ['a','b','c','d']; public function dup() { $dupes = 0; foreach ($this->items as $key => $item) { $this->addItem($item . '2', $key + 1 + $dupes); $dupes++; } } private function addItem($newItem, $position) { array_splice($this->items, $position, 0, array($newItem)); } public function dump() { var_dump($this->items); } } $test = new Test(); $test->dup(); $test->dump();
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array(8) { [0]=> string(1) "a" [1]=> string(2) "a2" [2]=> string(1) "b" [3]=> string(2) "b2" [4]=> string(1) "c" [5]=> string(2) "c2" [6]=> string(1) "d" [7]=> string(2) "d2" }
preferences:
134.63 ms | 407 KiB | 5 Q