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run code in 200+ php & hhvm versions
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<?php declare(strict_types = 1); class bar { public const FLAG = 0b0010; public static function foo(string $v, int $flags) { if ((($flags & self::FLAG) && !isset($v[0]))) { return true; } return false; } } var_dump(bar::foo('', 0b0010));
Output for 7.1.0 - 7.2.10
bool(true)
Output for 7.0.28
Parse error: syntax error, unexpected 'const' (T_CONST), expecting variable (T_VARIABLE) in /in/72d5f on line 4
Process exited with code 255.
Output for 5.6.38
Warning: Unsupported declare 'strict_types' in /in/72d5f on line 1 Parse error: syntax error, unexpected 'const' (T_CONST), expecting variable (T_VARIABLE) in /in/72d5f on line 4
Process exited with code 255.