wp_die( string|WP_Error $message = '', string|int $title = '', string|array|int $args = array() )
终止WordPress的执行并显示带有错误消息的HTML页面。目录锚点:#说明#源码#笔记
Kills WordPress execution and displays HTML page with an error message.
说明(Description)
此函数补充die()PHP函数。区别在于,HTML将显示给用户。建议仅在不再继续执行时使用此函数。不建议经常调用此函数,并尝试以静默或更优雅的方式处理尽可能多的错误。简而言之,所需的HTTP响应代码可以作为整数传递给$title参数(默认的title将应用)或$args参数。
源码(Source)
/**
* Kill WordPress execution and display HTML message with error message.
*
* This function complements the `die()` PHP function. The difference is that
* HTML will be displayed to the user. It is recommended to use this function
* only when the execution should not continue any further. It is not recommended
* to call this function very often, and try to handle as many errors as possible
* silently or more gracefully.
*
* As a shorthand, the desired HTTP response code may be passed as an integer to
* the `$title` parameter (the default title would apply) or the `$args` parameter.
*
* @since 2.0.4
* @since 4.1.0 The `$title` and `$args` parameters were changed to optionally accept
* an integer to be used as the response code.
*
* @param string|WP_Error $message Optional. Error message. If this is a {@see WP_Error} object,
* the error's messages are used. Default empty.
* @param string|int $title Optional. Error title. If `$message` is a `WP_Error` object,
* error data with the key 'title' may be used to specify the title.
* If `$title` is an integer, then it is treated as the response
* code. Default empty.
* @param string|array|int $args {
* Optional. Arguments to control behavior. If `$args` is an integer, then it is treated
* as the response code. Default empty array.
*
* @type int $response The HTTP response code. Default 500.
* @type bool $back_link Whether to include a link to go back. Default false.
* @type string $text_direction The text direction. This is only useful internally, when WordPress
* is still loading and the site's locale is not set up yet. Accepts 'rtl'.
* Default is the value of {@see is_rtl()}.
* }
*/
function wp_die( $message = '', $title = '', $args = array() ) {
if ( is_int( $args ) ) {
$args = array( 'response' => $args );
} elseif ( is_int( $title ) ) {
$args = array( 'response' => $title );
$title = '';
}
if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
/**
* Filter callback for killing WordPress execution for AJAX requests.
*
* @since 3.4.0
*
* @param callback $function Callback function name.
*/
$function = apply_filters( 'wp_die_ajax_handler', '_ajax_wp_die_handler' );
} elseif ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) {
/**
* Filter callback for killing WordPress execution for XML-RPC requests.
*
* @since 3.4.0
*
* @param callback $function Callback function name.
*/
$function = apply_filters( 'wp_die_xmlrpc_handler', '_xmlrpc_wp_die_handler' );
} else {
/**
* Filter callback for killing WordPress execution for all non-AJAX, non-XML-RPC requests.
*
* @since 3.0.0
*
* @param callback $function Callback function name.
*/
$function = apply_filters( 'wp_die_handler', '_default_wp_die_handler' );
}
call_user_func( $function, $message, $title, $args );
}
更新版本 | 源码位置 | 使用 | 被使用 |
---|---|---|---|
5.3.0 | wp-includes/functions.php | 18 | 18 |