src/Util/Env.php
public static function clear($name): void
    {
        if (static::$immutable) {
            return;
        }

        if (\function_exists('\\putenv')) {
            \putenv($name);
        }

        unset($_ENV[$name], $_SERVER[$name]);
    }
public static function clear($name): void
    {
        if (static::$immutable) {
            return;
        }

        if (\function_exists('\\putenv')) {
            \putenv($name);
        }

        unset($_ENV[$name], $_SERVER[$name]);
    }
public static function clear ( $ name ) : void { if ( static :: $ immutable ) { return ; } if ( \ function_exists ( '\\putenv' ) ) { \ putenv ( $ name ) ; } unset ( $ _ENV [ $ name ] , $ _SERVER [ $ name ] ) ; }
Clear an environment variable.

@param string $name

@return void
Clear an environment variable .