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<?php class x { const LABELS = [ 'a' => 'Hello', 'b' => 'World' ]; const UNKNOWN_LABEL = 'unknown'; public static function test($module) { self::LABELS[$module] ?? self::UNKNOWN_LABEL; } } $a = []; $a[] = x::test('a'); $a[] = x::test('b'); $a[] = x::test('c'); $a[] = x::test(null); var_dump($a);
Output for 8.5.0 - 8.5.9
Deprecated: Using null as an array offset is deprecated, use an empty string instead in /in/OSpheA on line 13 array(4) { [0]=> NULL [1]=> NULL [2]=> NULL [3]=> NULL }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.33, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24
array(4) { [0]=> NULL [1]=> NULL [2]=> NULL [3]=> NULL }
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '?' in /in/OSpheA on line 13
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
Fatal error: Arrays are not allowed in class constants in /in/OSpheA on line 8
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/OSpheA on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/OSpheA on line 5
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/OSpheA 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/OSpheA 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/OSpheA on line 5
Process exited with code 255.
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