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get_settings_errors › WordPress Function

Since3.0.0
已弃用n/a
get_settings_errors ( $setting = '', $sanitize = false )
参数: (2)
  • (string) $setting Optional. Slug title of a specific setting whose errors you want.
    Required: No
    默认: (empty)
  • (bool) $sanitize Optional. Whether to re-sanitize the setting value before returning errors.
    Required: No
    默认: false
返回:
  • (array[]) { Array of settings error arrays. @type array ...$0 { Associative array of setting error data. @type string $setting Slug title of the setting to which this error applies. @type string $code Slug-name to identify the error. Used as part of 'id' attribute in HTML output. @type string $message The formatted message text to display to the user (will be shown inside styled `<div>` and `<p>` tags). @type string $type Optional. Message type, controls HTML class. Possible values include 'error', 'success', 'warning', 'info'. Default 'error'. } }
定义在:
文档:

Fetches settings errors registered by add_settings_error().

Checks the $wp_settings_errors array for any errors declared during the current pageload and returns them. If changes were just submitted ($_GET['settings-updated']) and settings errors were saved to the 'settings_errors' transient then those errors will be returned instead. This is used to pass errors back across pageloads. Use the $sanitize argument to manually re-sanitize the option before returning errors. This is useful if you have errors or notices you want to show even when the user hasn't submitted data (i.e. when they first load an options page, or in the {@see 'admin_notices'} action hook).


源码

function get_settings_errors( $setting = '', $sanitize = false ) {
	global $wp_settings_errors;

	/*
	 * If $sanitize is true, manually re-run the sanitization for this option
	 * This allows the $sanitize_callback from register_setting() to run, adding
	 * any settings errors you want to show by default.
	 */
	if ( $sanitize ) {
		sanitize_option( $setting, get_option( $setting ) );
	}

	// If settings were passed back from options.php then use them.
	if ( isset( $_GET['settings-updated'] ) && $_GET['settings-updated'] && get_transient( 'settings_errors' ) ) {
		$wp_settings_errors = array_merge( (array) $wp_settings_errors, get_transient( 'settings_errors' ) );
		delete_transient( 'settings_errors' );
	}

	// Check global in case errors have been added on this pageload.
	if ( empty( $wp_settings_errors ) ) {
		return array();
	}

	// Filter the results to those of a specific setting if one was set.
	if ( $setting ) {
		$setting_errors = array();

		foreach ( (array) $wp_settings_errors as $key => $details ) {
			if ( $setting === $details['setting'] ) {
				$setting_errors[] = $wp_settings_errors[ $key ];
			}
		}

		return $setting_errors;
	}

	return $wp_settings_errors;
}