3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A{} $a = new A(); var_dump($a::CLASS);
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18, 8.3.0 - 8.3.6
string(1) "A"
Output for 5.4.0 - 5.4.15
Parse error: syntax error, unexpected 'CLASS' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in /in/0fNOQ on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.25
Parse error: syntax error, unexpected T_CLASS, expecting T_STRING or T_VARIABLE or '$' in /in/0fNOQ on line 5
Process exited with code 255.
preferences:
85.1 ms | 401 KiB | 69 Q