This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

_json_wp_die_handler( string $message, string $title = '', string|array $args = array() )

Kills WordPress execution and displays JSON response with an error message.

Description

This is the handler for wp_die() when processing JSON requests.

Parameters

$message

(Required) Error message.

$title

(Optional) Error title.

Default value: ''

$args

(Optional) Arguments to control behavior.

Default value: array()

Source

File: wp-includes/functions.php

function _json_wp_die_handler( $message, $title = '', $args = array() ) {
	list( $message, $title, $parsed_args ) = _wp_die_process_input( $message, $title, $args );

	$data = array(
		'code'              => $parsed_args['code'],
		'message'           => $message,
		'data'              => array(
			'status' => $parsed_args['response'],
		),
		'additional_errors' => $parsed_args['additional_errors'],
	);

	if ( ! headers_sent() ) {
		header( "Content-Type: application/json; charset={$parsed_args['charset']}" );
		if ( null !== $parsed_args['response'] ) {
			status_header( $parsed_args['response'] );
		}
		nocache_headers();
	}

	echo wp_json_encode( $data );
	if ( $parsed_args['exit'] ) {
		die();
	}
}

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Changelog

Changelog
Version	Description
5.1.0	Introduced.