3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public self $prop; } class B extends A { public parent $prop; } $a = new A(); $a_prop = new A(); $a->prop = $a_prop; var_dump($a); $b = new B(); $b_prop = new B(); $b->prop = $b_prop; var_dump($b);
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.5.0 - 8.5.3
object(A)#1 (1) { ["prop"]=> object(A)#2 (0) { ["prop"]=> uninitialized(A) } } object(B)#3 (1) { ["prop"]=> object(B)#4 (0) { ["prop"]=> uninitialized(A) } }
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
object(A)#1 (1) { ["prop"]=> object(A)#2 (0) { ["prop"]=> uninitialized(self) } } object(B)#3 (1) { ["prop"]=> object(B)#4 (0) { ["prop"]=> uninitialized(parent) } }
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'self' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/7RaLV on line 4
Process exited with code 255.
preferences:
93.56 ms | 1510 KiB | 4 Q