public function isValidDev(string $version): bool
    {
        if (!$version) {
            return false; // Nope.
        }
        return (bool) preg_match($this::WS_VERSION_REGEX_VALID_DEV, $version);
    }
public function isValidDev(string $version): bool
    {
        if (!$version) {
            return false; // Nope.
        }
        return (bool) preg_match($this::WS_VERSION_REGEX_VALID_DEV, $version);
    }
public function isValidDev ( string $ version ) : bool { if ( ! $ version ) { return false ; // Nope. } return ( bool ) preg_match ( $ this :: WS_VERSION_REGEX_VALID_DEV , $ version ) ; }
Is it a valid WS dev version?

@since 150424 Initial release.

@param string $version Input version.

@return bool `TRUE` if valid.
Is it a valid WS dev version?