Question

wp_remote_retrieve_response_message( array $response )

Retrieve only the response message from the raw response.

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description

Will return an empty array if incorrect parameter value is given.

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参数

$response

(array) (Required) HTTP response.

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返回值

(string) The response message. Empty string on incorrect parameter given.

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源代码

File: wp-includes/http.php

function wp_remote_retrieve_response_message( $response ) {
	if ( is_wp_error($response) || ! isset($response['response']) || ! is_array($response['response']))
		return '';

	return $response['response']['message'];
}

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更新日志

Version	description
2.7.0	Introduced.

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相关函数

Uses

• wp-includes/load.php: is_wp_error()

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Used By

• wp-admin/includes/file.php: download_url()

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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 Drew Jaynes

   Make Request and Display Error

   
   /**
    * Get movie information from IMDB.
    *
    * @param string $title Title of the movie
    * @param int $id IMDB ID of the movie
    * @return string|WP_Error Returns the contents of the response on success, WP_Error on failure
    */
   function wcpdx_get_movie( $title, $id = 0 ) {
   
   	// Collect the args
   	$params = array(
   		'i' => absint( $id ),
   		't' => sanitize_text_field( $title )
   	);
   
   	// Generate the URL
   	$url = 'http://www.imdbapi.com/';
   	$url = add_query_arg( $params, esc_url_raw( $url ) );
   
   	// Make API request
   	$response = wp_remote_get( esc_url_raw( $url ) );
   
   	// Check the response code
   	$response_code       = wp_remote_retrieve_response_code( $response );
   	$response_message = wp_remote_retrieve_response_message( $response );
   
   	if ( 200 != $response_code && ! empty( $response_message ) ) {
   		return new WP_Error( $response_code, $response_message );
   	} elseif ( 200 != $response_code ) {
   		return new WP_Error( $response_code, 'Unknown error occurred' );
   	} else {
   		return wp_remote_retrieve_body( $response );
           }
   }
   
   // Make request
   $movie = 'Hairspray';
   $response = wcpdx_get_movie( $movie );
   
   // Print error if error, otherwise print information
   if ( is_wp_error( $response ) ) {
   	echo 'The following error occurred when contacting IMDB: ' . wp_strip_all_tags( $response->get_error_message() );
   } else {
   	$data = json_decode( $response );
   	echo 'The movie ' . esc_html( $data['Title'] ) . ' was released in ' . absint( $data['Year'] ) . '.';
   }