| @@ -26,9 +26,9 @@ | ||
| 26 | 26 | * |
| 27 | 27 | * @return MainWP_DB |
| 28 | 28 | */ |
| 29 | 29 | public static function instance() { |
| 30 | - if ( null === self::$instance ) { | |
| 30 | + if ( null == self::$instance ) { | |
| 31 | 31 | self::$instance = new self(); |
| 32 | 32 | } |
| 33 | 33 | return self::$instance; |
| 34 | 34 | } |
| @@ -167,18 +167,4 @@ | ||
| 167 | 167 | return MainWP\Dashboard\MainWP_Extensions_View::get_available_extensions(); |
| 168 | 168 | } |
| 169 | 169 | } |
| 170 | 170 | } |
| 171 | - | |
| 172 | - | |
| 173 | -/** | |
| 174 | - * To compatible with php version < 7.3.0. | |
| 175 | - */ | |
| 176 | -if ( ! function_exists( 'array_key_first' ) ) { | |
| 177 | - function array_key_first( array $arr ) { | |
| 178 | - foreach ( $arr as $key => $unused ) { | |
| 179 | - return $key; | |
| 180 | - } | |
| 181 | - return null; | |
| 182 | - } | |
| 183 | -} | |
| 184 | - | |
