3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A { public $var = self::$val[1]; protected static $val = [ 0 => 'a', 1 => 'b' ]; } $a = new A(); echo $a->var;
Output for 7.0.0
Fatal error: Constant expression contains invalid operations in /in/clSIE on line 3
Process exited with code 255.
Output for 5.5.24 - 5.6.16
Parse error: syntax error, unexpected '$val' (T_VARIABLE), expecting identifier (T_STRING) or class (T_CLASS) in /in/clSIE on line 3
Process exited with code 255.
Output for 5.4.10 - 5.4.45
Parse error: syntax error, unexpected '$val' (T_VARIABLE), expecting identifier (T_STRING) in /in/clSIE on line 3
Process exited with code 255.
Output for 5.3.20 - 5.3.29
Parse error: syntax error, unexpected T_VARIABLE, expecting T_STRING in /in/clSIE on line 3
Process exited with code 255.