wp_json_encode() – Function | Developer.WordPress.org

Encodes a variable into JSON, with some confidence checks.

Parameters

$valuemixedrequired: Variable (usually an array or object) to encode as JSON.
$flagsintoptional: Options to be passed to json_encode(). Default 0.
$depthintoptional: Maximum depth to walk through $value. Must be greater than 0.
Default:512

Return

string|false The JSON encoded string, or false if it cannot be encoded.

Source

function wp_json_encode( $value, $flags = 0, $depth = 512 ) {
	$json = json_encode( $value, $flags, $depth );

	// If json_encode() was successful, no need to do more confidence checking.
	if ( false !== $json ) {
		return $json;
	}

	try {
		$value = _wp_json_sanity_check( $value, $depth );
	} catch ( Exception $e ) {
		return false;
	}

	return json_encode( $value, $flags, $depth );
}

View all references View on Trac View on GitHub

Used by	Description
WP_Script_Modules::print_import_map()`wp-includes/class-wp-script-modules.php`	Prints the import map using a script tag with a type=”importmap” attribute.
WP_REST_Font_Faces_Controller::prepare_item_for_database()`wp-includes/rest-api/endpoints/class-wp-rest-font-faces-controller.php`	Prepares a single font face post for creation.
WP_REST_Font_Families_Controller::prepare_item_for_database()`wp-includes/rest-api/endpoints/class-wp-rest-font-families-controller.php`	Prepares a single font family post for create or update.
wp_remove_surrounding_empty_script_tags()`wp-includes/script-loader.php`	Removes leading and trailing _empty_ script tags.
_wp_filter_post_meta_footnotes()`wp-includes/blocks.php`	Strips all HTML from the content of footnotes, and sanitizes the ID.
wp_attach_theme_preview_middleware()`wp-includes/theme-previews.php`	Adds a middleware to `apiFetch` to set the theme for the preview.
wp_block_theme_activate_nonce()`wp-includes/theme-previews.php`	Set a JavaScript constant for theme activation.
WP_Style_Engine_Processor::combine_rules_selectors()`wp-includes/style-engine/class-wp-style-engine-processor.php`	Combines selectors from the rules store when they have the same styles.
WP_REST_Global_Styles_Controller::prepare_item_for_database()`wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php`	Prepares a single global styles config for update.
wp_generate_block_templates_export_file()`wp-includes/block-template-utils.php`	Creates an export of the current templates and template parts from the site editor at the specified path in a ZIP file.
wp_filter_global_styles_post()`wp-includes/kses.php`	Sanitizes global styles user content removing unsafe rules.
block_editor_rest_api_preload()`wp-includes/block-editor.php`	Preloads common data used with the block editor by specifying an array of REST API paths that will be preloaded for a given block editor context.
rest_validate_enum()`wp-includes/rest-api.php`	Validates that the given value is a member of the JSON Schema “enum”.
WP_Application_Passwords_List_Table::print_js_template_row()`wp-admin/includes/class-wp-application-passwords-list-table.php`	Prints the JavaScript template for the new row item.
serialize_block_attributes()`wp-includes/blocks.php`	Given an array of attributes, returns a string in the serialized attributes format prepared for post content.
WP_Site_Health::wp_cron_scheduled_check()`wp-admin/includes/class-wp-site-health.php`	Runs the scheduled event to check and update the latest site health status for the website.
enqueue_editor_block_styles_assets()`wp-includes/script-loader.php`	Function responsible for enqueuing the assets required for block styles functionality on the editor.
_jsonp_wp_die_handler()`wp-includes/functions.php`	Kills WordPress execution and displays JSONP response with an error message.
wp_ajax_health_check_site_status_result()`wp-admin/includes/ajax-actions.php`	Handles site health check to update the result status via AJAX.
_json_wp_die_handler()`wp-includes/functions.php`	Kills WordPress execution and displays JSON response with an error message.
wp_default_packages_vendor()`wp-includes/script-loader.php`	Registers all the WordPress vendor scripts that are in the standardized `js/dist/vendor/` location.
wp_default_packages_inline_scripts()`wp-includes/script-loader.php`	Adds inline scripts required for the WordPress JavaScript packages.
wp_tinymce_inline_scripts()`wp-includes/script-loader.php`	Adds inline scripts required for the TinyMCE in the block editor.
the_block_editor_meta_boxes()`wp-admin/includes/post.php`	Renders the meta boxes forms.
wp_create_user_request()`wp-includes/user.php`	Creates and logs a user request to perform a specific action.
WP_Privacy_Policy_Content::notice()`wp-admin/includes/class-wp-privacy-policy-content.php`	Adds a notice with a link to the guide when editing the privacy policy page.
wp_privacy_generate_personal_data_export_file()`wp-admin/includes/privacy-tools.php`	Generate the personal data export file.
wp_start_scraping_edited_file_errors()`wp-includes/load.php`	Starts scraping edited file errors.
wp_finalize_scraping_edited_file_errors()`wp-includes/load.php`	Finalizes scraping for edited file errors.
wp_enqueue_code_editor()`wp-includes/general-template.php`	Enqueues assets needed by the code editor for the given settings.
WP_Widget_Media_Gallery::enqueue_admin_scripts()`wp-includes/widgets/class-wp-widget-media-gallery.php`	Loads the required media files for the media manager and scripts for media widgets.
WP_Widget_Custom_HTML::enqueue_admin_scripts()`wp-includes/widgets/class-wp-widget-custom-html.php`	Loads the required scripts and styles for the widget control.
WP_Customize_Date_Time_Control::content_template()`wp-includes/customize/class-wp-customize-date-time-control.php`	Renders a JS template for the content of date time control.
_WP_Editors::default_settings()`wp-includes/class-wp-editor.php`	Returns the default TinyMCE settings.
WP_Widget_Text::enqueue_admin_scripts()`wp-includes/widgets/class-wp-widget-text.php`	Loads the required scripts and styles for the widget control.
WP_Widget_Media_Audio::enqueue_admin_scripts()`wp-includes/widgets/class-wp-widget-media-audio.php`	Loads the required media files for the media manager and scripts for media widgets.
WP_Widget_Media_Video::enqueue_admin_scripts()`wp-includes/widgets/class-wp-widget-media-video.php`	Loads the required scripts and styles for the widget control.
WP_Widget_Media_Image::enqueue_admin_scripts()`wp-includes/widgets/class-wp-widget-media-image.php`	Loads the required media files for the media manager and scripts for media widgets.
WP_Community_Events::maybe_log_events_response()`wp-admin/includes/class-wp-community-events.php`	Logs responses to Events API requests.
WP_Customize_Manager::save_changeset_post()`wp-includes/class-wp-customize-manager.php`	Saves the post for the loaded changeset.
wp_localize_jquery_ui_datepicker()`wp-includes/script-loader.php`	Localizes the jQuery UI datepicker.
WP_Customize_Widgets::filter_dynamic_sidebar_params()`wp-includes/class-wp-customize-widgets.php`	Inject selective refresh data attributes into widget container elements.
WP_Customize_Site_Icon_Control::content_template()`wp-includes/customize/class-wp-customize-site-icon-control.php`	Renders a JS template for the content of the site icon control.
WP_Customize_Selective_Refresh::export_preview_data()`wp-includes/customize/class-wp-customize-selective-refresh.php`	Exports data in preview after it has finished rendering so that partials can be added at runtime.
WP_Customize_Manager::customize_pane_settings()`wp-includes/class-wp-customize-manager.php`	Prints JavaScript settings for parent window.
WP_REST_Server::serve_request()`wp-includes/rest-api/class-wp-rest-server.php`	Handles serving a REST API request.
WP_REST_Server::json_error()`wp-includes/rest-api/class-wp-rest-server.php`	Retrieves an appropriate error representation in JSON.
WP_Customize_Nav_Menus::export_preview_data()`wp-includes/class-wp-customize-nav-menus.php`	Exports data from PHP to JS.
WP_Customize_Nav_Menus::filter_wp_nav_menu()`wp-includes/class-wp-customize-nav-menus.php`	Prepares wp_nav_menu() calls for partial refresh.
WP_Customize_Nav_Menus::enqueue_scripts()`wp-includes/class-wp-customize-nav-menus.php`	Enqueues scripts and styles for Customizer pane.
WP_List_Table::ajax_response()`wp-admin/includes/class-wp-list-table.php`	Handles an incoming ajax request (called from admin-ajax.php)
WP_List_Table::_js_vars()`wp-admin/includes/class-wp-list-table.php`	Sends required variables to JavaScript land.
admin_color_scheme_picker()`wp-admin/includes/misc.php`	Displays the default admin color scheme picker (Used in user-edit.php).
wp_color_scheme_settings()`wp-admin/includes/misc.php`
WP_Internal_Pointers::print_js()`wp-admin/includes/class-wp-internal-pointers.php`	Prints the pointer JavaScript data.
compression_test()`wp-admin/includes/template.php`	Tests support for compressing JavaScript from PHP.
WP_Themes_List_Table::_js_vars()`wp-admin/includes/class-wp-themes-list-table.php`	Send required variables to JavaScript land
media_upload_form()`wp-admin/includes/media.php`	Outputs the legacy media upload form.
media_send_to_editor()`wp-admin/includes/media.php`	Adds image HTML to editor.
wp_ajax_upload_attachment()`wp-admin/includes/ajax-actions.php`	Handles uploading attachments via AJAX.
wp_ajax_menu_get_metabox()`wp-admin/includes/ajax-actions.php`	Handles for retrieving menu meta boxes via AJAX.
wp_ajax_wp_link_ajax()`wp-admin/includes/ajax-actions.php`	Handles internal linking via AJAX.
wp_ajax_autocomplete_user()`wp-admin/includes/ajax-actions.php`	Handles user autocomplete via AJAX.
_wp_ajax_menu_quick_search()`wp-admin/includes/nav-menu.php`	Prints the appropriate response to a menu quick search.
options_general_add_js()`wp-admin/includes/options.php`	Display JavaScript on the page.
WP_Customize_Manager::customize_preview_settings()`wp-includes/class-wp-customize-manager.php`	Prints JavaScript settings for preview frame.
WP_Customize_Manager::wp_die()`wp-includes/class-wp-customize-manager.php`	Custom wp_die wrapper. Returns either the standard message for UI or the Ajax message.
_wp_customize_loader_settings()`wp-includes/theme.php`	Adds settings for the customize-loader script.
wp_send_json()`wp-includes/functions.php`	Sends a JSON response back to an Ajax request.
wp_version_check()`wp-includes/update.php`	Checks WordPress version against the newest version.
wp_update_plugins()`wp-includes/update.php`	Checks for available updates to plugins based on the latest versions hosted on WordPress.org.
wp_update_themes()`wp-includes/update.php`	Checks for available updates to themes based on the latest versions hosted on WordPress.org.
WP_Scripts::localize()`wp-includes/class-wp-scripts.php`	Localizes a script, only if the script has already been added.
WP_Customize_Widgets::export_preview_data()`wp-includes/class-wp-customize-widgets.php`	Communicates the sidebars that appeared on the page at the very end of the page, and at the very end of the wp_footer,
WP_Customize_Widgets::enqueue_scripts()`wp-includes/class-wp-customize-widgets.php`	Enqueues scripts and styles for Customizer panel and export data to JavaScript.
wp_default_scripts()`wp-includes/script-loader.php`	Registers all WordPress scripts.
_WP_Editors::editor_settings()`wp-includes/class-wp-editor.php`
_WP_Editors::wp_mce_translation()`wp-includes/class-wp-editor.php`	Translates the default TinyMCE strings and returns them as JSON encoded object ready to be loaded with tinymce.addI18n(), or as JS snippet that should run after tinymce.js is loaded.

Show 73 more Show less

Changelog

Version	Description
6.5.0	The `$data` parameter has been renamed to `$value` and the `$options` parameter to `$flags` for parity with PHP.
5.3.0	No longer handles support for PHP < 5.6.
4.1.0	Introduced.

User Contributed Notes

Skip to note 2 content

Kamal Hosen 2 years ago

You must log in to vote on the helpfulness of this noteVote results for this note: -4You must log in to vote on the helpfulness of this note
```
function get_json() {
	$out            = array();
	$out['options'] = array( 'option-1', 'option-2' );
	$out['content'] = 'content example';
	return wp_json_encode( $out );
}
```
Log in to add feedback

wp_json_encode( mixed $value, int $flags, int $depth = 512 ): string|false

In this article

Parameters

Return

Source

Changelog

User Contributed Notes

wp_json_encode( mixed $value, int $flags, int $depth = 512 ): string|false

In this article

Parameters

Return

Source

Related

Changelog

User Contributed Notes