3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { const BAR = 1; protected $message = BAR; public function __construct($message) { $this->message = $message; echo "Initialized with {$this->message}"; } } $var = new Foo(Foo::BAR);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "BAR" in /in/28Pg6:16 Stack trace: #0 {main} thrown in /in/28Pg6 on line 16
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant BAR - assumed 'BAR' (this will throw an Error in a future version of PHP) in /in/28Pg6 on line 16 Initialized with 1
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Notice: Use of undefined constant BAR - assumed 'BAR' in /in/28Pg6 on line 16 Initialized with 1
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/28Pg6 on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/28Pg6 on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/28Pg6 on line 5
Process exited with code 255.
preferences:
223.64 ms | 401 KiB | 350 Q