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wordpress函数get_settings_errors()用法示例

get_settings_errors( string $setting = '',  boolean $sanitize = false )

Fetch settings errors registered by add_settings_error()


描述

Checks the $wp_settings_errors array for any errors declared during the current pageload and returns them.

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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 ‘admin_notices’ action hook).


参数

$setting

(string)
(Optional)
slug title of a specific setting who's errors you want.

Default value: ''

$sanitize

(boolean)
(Optional)
Whether to re-sanitize the setting value before returning errors.

Default value: false


返回值

(array) Array of settings errors


源代码

File: wp-admin/includes/template.php

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 ( ! count( $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;
}

更新日志

Version 描述
3.0.0 Introduced.

相关函数

Uses

  • wp-includes/formatting.php:
    sanitize_option()
  • wp-includes/option.php:
    get_transient()
  • wp-includes/option.php:
    delete_transient()
  • wp-includes/option.php:
    get_option()

Used By

  • wp-admin/includes/template.php:
    settings_errors()

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