3v4l.org

run code in 300+ PHP versions simultaneously
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
Array $v | Cyclic: true ---------------- array(3) { [0]=> int(1) [1]=> *RECURSION* [2]=> int(3) } Array $x | Cyclic: true ---------------- array(2) { [0]=> int(1) [1]=> array(2) { [0]=> int(2) [1]=> *RECURSION* } } Array $y | Cyclic: true ---------------- array(2) { [0]=> int(1) [1]=> &array(2) { [0]=> int(2) [1]=> array(2) { [0]=> int(3) [1]=> *RECURSION* } } } Array $z | Cyclic: true ---------------- array(2) { [0]=> int(1) [1]=> &array(2) { [0]=> int(2) [1]=> *RECURSION* } } Array $p | Cyclic: false ---------------- array(3) { [0]=> int(1) [1]=> int(2) [2]=> array(3) { [0]=> int(3) [1]=> int(4) [2]=> array(3) { [0]=> int(5) [1]=> int(6) [2]=> int(7) } } }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Array $v | Cyclic: true ---------------- array(3) { [0]=> int(1) [1]=> &array(3) { [0]=> int(1) [1]=> *RECURSION* [2]=> int(3) } [2]=> int(3) } Array $x | Cyclic: true ---------------- array(2) { [0]=> int(1) [1]=> array(2) { [0]=> int(2) [1]=> &array(2) { [0]=> int(1) [1]=> *RECURSION* } } } Array $y | Cyclic: true ---------------- array(2) { [0]=> int(1) [1]=> &array(2) { [0]=> int(2) [1]=> array(2) { [0]=> int(3) [1]=> *RECURSION* } } } Array $z | Cyclic: true ---------------- array(2) { [0]=> int(1) [1]=> &array(2) { [0]=> int(2) [1]=> *RECURSION* } } Array $p | Cyclic: false ---------------- array(3) { [0]=> int(1) [1]=> int(2) [2]=> array(3) { [0]=> int(3) [1]=> int(4) [2]=> array(3) { [0]=> int(5) [1]=> int(6) [2]=> int(7) } } }

preferences:
54.74 ms | 416 KiB | 5 Q