* This function will return false on older PHPs.
*
* @since 1.21
- * @return string|false
+ * @return string|bool
*/
static function getICUVersion() {
return defined( 'INTL_ICU_VERSION' ) ? INTL_ICU_VERSION : false;
* currently in use, or false when it can't be determined.
*
* @since 1.21
- * @return string|false
+ * @return string|bool
*/
static function getUnicodeVersionForICU() {
$icuVersion = IcuCollation::getICUVersion();