maintenance_nag

函数
maintenance_nag ( No parameters )
返回值
  • (void|false)
定义位置
相关方法
wp_maintenancewp_is_maintenance_modeupdate_nagbalancetagsformat_code_lang
引入
2.7.0
弃用
-

maintenance_nag:这是WordPress中的一个函数,在WordPress仪表盘上显示一个通知,通知网站管理员网站处于维护模式。你可以使用这个函数为网站管理员在维护模式下添加一个自定义信息或说明。

显示维护提示的HTML信息。

function maintenance_nag() {
	// Include an unmodified $wp_version.
	require ABSPATH . WPINC . '/version.php';
	global $upgrading;
	$nag = isset( $upgrading );
	if ( ! $nag ) {
		$failed = get_site_option( 'auto_core_update_failed' );
		/*
		 * If an update failed critically, we may have copied over version.php but not other files.
		 * In that case, if the installation claims we're running the version we attempted, nag.
		 * This is serious enough to err on the side of nagging.
		 *
		 * If we simply failed to update before we tried to copy any files, then assume things are
		 * OK if they are now running the latest.
		 *
		 * This flag is cleared whenever a successful update occurs using Core_Upgrader.
		 */
		$comparison = ! empty( $failed['critical'] ) ? '>=' : '>';
		if ( isset( $failed['attempted'] ) && version_compare( $failed['attempted'], $wp_version, $comparison ) ) {
			$nag = true;
		}
	}

	if ( ! $nag ) {
		return false;
	}

	if ( current_user_can( 'update_core' ) ) {
		$msg = sprintf(
			/* translators: %s: URL to WordPress Updates screen. */
			__( 'An automated WordPress update has failed to complete - <a href="%s">please attempt the update again now</a>.' ),
			'update-core.php'
		);
	} else {
		$msg = __( 'An automated WordPress update has failed to complete! Please notify the site administrator.' );
	}

	echo "<div class='update-nag notice notice-warning inline'>$msg</div>";
}

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