3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public A $prop; } class B extends A { } $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, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
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 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 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 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected 'A' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST) in /in/tjmRG on line 4
Process exited with code 255.

preferences:
122.72 ms | 402 KiB | 180 Q