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<?php class Test { const FIRST = 1; protected static $array = array( self::FIRST => 'first', 'second', 'third' ); public function __construct() { var_export(self::$array); } } $test = new Test();
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 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 - 8.3.6
array ( 1 => 'first', 2 => 'second', 3 => 'third', )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
array ( 0 => 'second', 1 => 'third', )
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
array ( 1 => 'first', 0 => 'second', )
Output for 5.0.5
array ( 0 => 'second', 1 => 'first', )
Output for 5.0.0 - 5.0.4
Fatal error: Cannot access self:: when no class scope is active in /in/A00aR on line 18
Process exited with code 255.
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/A00aR on line 4
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/A00aR on line 4
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/A00aR on line 4
Process exited with code 255.

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