Question

settings_errors( string $setting = '',  bool $sanitize = false,  bool $hide_on_update = false )

Display settings errors registered by add_settings_error().

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description

Part of the Settings API. Outputs a div for each error retrieved by get_settings_errors().

This is called automatically after a settings page based on the Settings API is submitted. Errors should be added during the validation callback function for a setting defined in register_setting().

The $sanitize option is passed into get_settings_errors() and will re-run the setting sanitization on its current value.

The $hide_on_update option will cause errors to only show when the settings page is first loaded. if the user has already saved new values it will be hidden to avoid repeating messages already shown in the default error reporting after submission. This is useful to show general errors like missing settings when the user arrives at the settings page.

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参数

$setting

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

Default value: ''

$sanitize

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

Default value: false

$hide_on_update

(bool) (Optional) If set to true errors will not be shown if the settings page has already been submitted.

Default value: false

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源代码

File: wp-admin/includes/template.php

function settings_errors( $setting = '', $sanitize = false, $hide_on_update = false ) {

	if ( $hide_on_update && ! empty( $_GET['settings-updated'] ) )
		return;

	$settings_errors = get_settings_errors( $setting, $sanitize );

	if ( empty( $settings_errors ) )
		return;

	$output = '';
	foreach ( $settings_errors as $key => $details ) {
		$css_id = 'setting-error-' . $details['code'];
		$css_class = $details['type'] . ' settings-error notice is-dismissible';
		$output .= "<div id='$css_id' class='$css_class'> \n";
		$output .= "<p><strong>{$details['message']}</strong></p>";
		$output .= "</div> \n";
	}
	echo $output;
}

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更新日志

Version	description
3.0.0	Introduced.

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相关函数

Uses

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

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User Contributed Notes

1. Skip to note content You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note Contributed by Codex

   Example

   
   /**
    * Displays all messages registered to 'your-settings-error-slug'
    */
   function wpdocs_your_admin_notices_action() {
       settings_errors( 'your-settings-error-slug' );
   }
   add_action( 'admin_notices', 'wpdocs_your_admin_notices_action' );