/*
* Store original value for language with untypical grammars.
- * See http://core.trac.wordpress.org/ticket/9396
+ * See https://core.trac.wordpress.org/ticket/9396
*/
$req_format = $dateformatstring;
*
* @param int|string $bytes Number of bytes. Note max integer size for integers.
* @param int $decimals Optional. Precision of number of decimal places. Default 0.
- * @return bool|string False on failure. Number string on success.
+ * @return string|false False on failure. Number string on success.
*/
function size_format( $bytes, $decimals = 0 ) {
$quant = array(
return serialize( $data );
// Double serialization is required for backward compatibility.
- // See http://core.trac.wordpress.org/ticket/12930
+ // See https://core.trac.wordpress.org/ticket/12930
if ( is_serialized( $data, false ) )
return serialize( $data );
*/
function wp_extract_urls( $content ) {
preg_match_all(
- "#("
+ "#([\"']?)("
. "(?:([\w-]+:)?//?)"
. "[^\s()<>]+"
. "[.]"
. "(?:"
. "\([\w\d]+\)|"
. "(?:"
- . "[^`!()\[\]{};:'\".,<>?«»“”‘’\s]|"
+ . "[^`!()\[\]{};:'\".,<>«»“”‘’\s]|"
. "(?:[:]\d+)?/?"
. ")+"
. ")"
- . ")#",
+ . ")\\1#",
$content,
$post_links
);
- $post_links = array_unique( array_map( 'html_entity_decode', $post_links[0] ) );
+ $post_links = array_unique( array_map( 'html_entity_decode', $post_links[2] ) );
return array_values( $post_links );
}
* @global string $currentday The day of the current post in the loop.
* @global string $previousday The day of the previous post in the loop.
*
- * @return int|bool 1|true when new day, 0|false if not a new day.
+ * @return int 1 when new day, 0 if not a new day.
*/
function is_new_day() {
global $currentday, $previousday;
* @since 1.5.0
*
* @param string|array $key Query key or keys to remove.
- * @param bool $query Optional. When false uses the $_SERVER value. Default false.
+ * @param bool|string $query Optional. When false uses the $_SERVER value. Default false.
* @return string New URL query string.
*/
function remove_query_arg( $key, $query = false ) {
* @see wp_safe_remote_get()
*
* @param string $uri URI/URL of web page to retrieve.
- * @return bool|string HTTP content. False on failure.
+ * @return false|string HTTP content. False on failure.
*/
function wp_remote_fopen( $uri ) {
$parsed_url = @parse_url( $uri );
*
* @since 2.0.0
*
- * @global wpdb $wpdb WordPress database access abstraction object.
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @return int Number of database queries.
*/
*
* @since 2.1.0
*
- * @global wpdb $wpdb WordPress database access abstraction object.
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @return bool Whether the blog is already installed.
*/
*
* @since 2.0.4
*
- * @param string $actionurl URL to add nonce action.
- * @param string $action Optional. Nonce action name. Default -1.
- * @param string $name Optional. Nonce name. Default '_wpnonce'.
+ * @param string $actionurl URL to add nonce action.
+ * @param int|string $action Optional. Nonce action name. Default -1.
+ * @param string $name Optional. Nonce name. Default '_wpnonce'.
* @return string Escaped URL with nonce action added.
*/
function wp_nonce_url( $actionurl, $action = -1, $name = '_wpnonce' ) {
*
* @since 2.0.4
*
- * @param string $action Optional. Action name. Default -1.
- * @param string $name Optional. Nonce name. Default '_wpnonce'.
- * @param bool $referer Optional. Whether to set the referer field for validation. Default true.
- * @param bool $echo Optional. Whether to display or return hidden form field. Default true.
+ * @param int|string $action Optional. Action name. Default -1.
+ * @param string $name Optional. Nonce name. Default '_wpnonce'.
+ * @param bool $referer Optional. Whether to set the referer field for validation. Default true.
+ * @param bool $echo Optional. Whether to display or return hidden form field. Default true.
* @return string Nonce field HTML markup.
*/
function wp_nonce_field( $action = -1, $name = "_wpnonce", $referer = true , $echo = true ) {
*
* @since 2.0.4
*
- * @return string|bool False on failure. Referer URL on success.
+ * @return false|string False on failure. Referer URL on success.
*/
function wp_get_referer() {
if ( ! function_exists( 'wp_validate_redirect' ) )
*
* @since 2.0.4
*
- * @return string|bool False if no original referer or original referer if set.
+ * @return string|false False if no original referer or original referer if set.
*/
function wp_get_original_referer() {
if ( ! empty( $_REQUEST['_wp_original_http_referer'] ) && function_exists( 'wp_validate_redirect' ) )
*
* @since 2.0.0
*
- * @param string $name Filename.
- * @param null $deprecated Never used. Set to null.
- * @param mixed $bits File content
- * @param string $time Optional. Time formatted in 'yyyy/mm'. Default null.
+ * @param string $name Filename.
+ * @param null|string $deprecated Never used. Set to null.
+ * @param mixed $bits File content
+ * @param string $time Optional. Time formatted in 'yyyy/mm'. Default null.
* @return array
*/
function wp_upload_bits( $name, $deprecated, $bits, $time = null ) {
'image' => array( 'jpg', 'jpeg', 'jpe', 'gif', 'png', 'bmp', 'tif', 'tiff', 'ico' ),
'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ),
'video' => array( '3g2', '3gp', '3gpp', 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ),
- 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'xps', 'oxps', 'rtf', 'wp', 'wpd' ),
+ 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'xps', 'oxps', 'rtf', 'wp', 'wpd', 'psd' ),
'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsm', 'xlsb' ),
'interactive' => array( 'swf', 'key', 'ppt', 'pptx', 'pptm', 'pps', 'ppsx', 'ppsm', 'sldx', 'sldm', 'odp' ),
'text' => array( 'asc', 'csv', 'tsv', 'txt' ),
'rar' => 'application/rar',
'7z' => 'application/x-7z-compressed',
'exe' => 'application/x-msdownload',
+ 'psd' => 'application/octet-stream',
// MS Office formats.
'doc' => 'application/msword',
'pot|pps|ppt' => 'application/vnd.ms-powerpoint',
*
* @since 2.8.6
*
- * @uses wp_get_upload_mime_types() to fetch the list of mime types
- *
* @param int|WP_User $user Optional. User to check. Defaults to current user.
* @return array Array of mime types keyed by the file extension regex corresponding
* to those types.
* @param string $action The nonce action.
*/
function wp_nonce_ays( $action ) {
- $title = __( 'WordPress Failure Notice' );
if ( 'log-out' == $action ) {
$html = sprintf( __( 'You are attempting to log out of %s' ), get_bloginfo( 'name' ) ) . '</p><p>';
$redirect_to = isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : '';
$html .= "</p><p><a href='" . esc_url( remove_query_arg( 'updated', wp_get_referer() ) ) . "'>" . __( 'Please try again.' ) . "</a>";
}
- wp_die( $html, $title, array('response' => 403) );
+ wp_die( $html, __( 'WordPress Failure Notice' ), 403 );
}
/**
* Kill WordPress execution and display HTML message with error message.
*
- * This function complements the die() PHP function. The difference is that
+ * This function complements the `die()` PHP function. The difference is that
* HTML will be displayed to the user. It is recommended to use this function
- * only, when the execution should not continue any further. It is not
- * recommended to call this function very often and try to handle as many errors
- * as possible silently.
+ * only when the execution should not continue any further. It is not recommended
+ * to call this function very often, and try to handle as many errors as possible
+ * silently or more gracefully.
*
- * @since 2.0.4
+ * As a shorthand, the desired HTTP response code may be passed as an integer to
+ * the `$title` parameter (the default title would apply) or the `$args` parameter.
*
- * @param string $message Optional. Error message. Default empty.
- * @param string $title Optional. Error title. Default empty.
- * @param string|array $args Optional. Arguments to control behavior. Default empty array.
+ * @since 2.0.4
+ * @since 4.1.0 The `$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.
die();
}
+/**
+ * Encode a variable into JSON, with some sanity checks.
+ *
+ * @since 4.1.0
+ *
+ * @param mixed $data Variable (usually an array or object) to encode as JSON.
+ * @param int $options Optional. Options to be passed to json_encode(). Default 0.
+ * @param int $depth Optional. Maximum depth to walk through $data. Must be
+ * greater than 0. Default 512.
+ * @return bool|string The JSON encoded string, or false if it cannot be encoded.
+ */
+function wp_json_encode( $data, $options = 0, $depth = 512 ) {
+ /*
+ * json_encode() has had extra params added over the years.
+ * $options was added in 5.3, and $depth in 5.5.
+ * We need to make sure we call it with the correct arguments.
+ */
+ if ( version_compare( PHP_VERSION, '5.5', '>=' ) ) {
+ $args = array( $data, $options, $depth );
+ } elseif ( version_compare( PHP_VERSION, '5.3', '>=' ) ) {
+ $args = array( $data, $options );
+ } else {
+ $args = array( $data );
+ }
+
+ $json = call_user_func_array( 'json_encode', $args );
+
+ // If json_encode() was successful, no need to do more sanity checking.
+ // ... unless we're in an old version of PHP, and json_encode() returned
+ // a string containing 'null'. Then we need to do more sanity checking.
+ if ( false !== $json && ( version_compare( PHP_VERSION, '5.5', '>=' ) || false === strpos( $json, 'null' ) ) ) {
+ return $json;
+ }
+
+ try {
+ $args[0] = _wp_json_sanity_check( $data, $depth );
+ } catch ( Exception $e ) {
+ return false;
+ }
+
+ return call_user_func_array( 'json_encode', $args );
+}
+
+/**
+ * Perform sanity checks on data that shall be encoded to JSON.
+ *
+ * @see wp_json_encode()
+ *
+ * @since 4.1.0
+ * @access private
+ * @internal
+ *
+ * @param mixed $data Variable (usually an array or object) to encode as JSON.
+ * @param int $depth Maximum depth to walk through $data. Must be greater than 0.
+ * @return mixed The sanitized data that shall be encoded to JSON.
+ */
+function _wp_json_sanity_check( $data, $depth ) {
+ if ( $depth < 0 ) {
+ throw new Exception( 'Reached depth limit' );
+ }
+
+ if ( is_array( $data ) ) {
+ $output = array();
+ foreach ( $data as $id => $el ) {
+ // Don't forget to sanitize the ID!
+ if ( is_string( $id ) ) {
+ $clean_id = _wp_json_convert_string( $id );
+ } else {
+ $clean_id = $id;
+ }
+
+ // Check the element type, so that we're only recursing if we really have to.
+ if ( is_array( $el ) || is_object( $el ) ) {
+ $output[ $clean_id ] = _wp_json_sanity_check( $el, $depth - 1 );
+ } elseif ( is_string( $el ) ) {
+ $output[ $clean_id ] = _wp_json_convert_string( $el );
+ } else {
+ $output[ $clean_id ] = $el;
+ }
+ }
+ } elseif ( is_object( $data ) ) {
+ $output = new stdClass;
+ foreach ( $data as $id => $el ) {
+ if ( is_string( $id ) ) {
+ $clean_id = _wp_json_convert_string( $id );
+ } else {
+ $clean_id = $id;
+ }
+
+ if ( is_array( $el ) || is_object( $el ) ) {
+ $output->$clean_id = _wp_json_sanity_check( $el, $depth - 1 );
+ } elseif ( is_string( $el ) ) {
+ $output->$clean_id = _wp_json_convert_string( $el );
+ } else {
+ $output->$clean_id = $el;
+ }
+ }
+ } elseif ( is_string( $data ) ) {
+ return _wp_json_convert_string( $data );
+ } else {
+ return $data;
+ }
+
+ return $output;
+}
+
+/**
+ * Convert a string to UTF-8, so that it can be safely encoded to JSON.
+ *
+ * @see _wp_json_sanity_check()
+ *
+ * @since 4.1.0
+ * @access private
+ * @internal
+ *
+ * @param string $string The string which is to be converted.
+ * @return string The checked string.
+ */
+function _wp_json_convert_string( $string ) {
+ static $use_mb = null;
+ if ( is_null( $use_mb ) ) {
+ $use_mb = function_exists( 'mb_convert_encoding' );
+ }
+
+ if ( $use_mb ) {
+ $encoding = mb_detect_encoding( $string, mb_detect_order(), true );
+ if ( $encoding ) {
+ return mb_convert_encoding( $string, 'UTF-8', $encoding );
+ } else {
+ return mb_convert_encoding( $string, 'UTF-8', 'UTF-8' );
+ }
+ } else {
+ return wp_check_invalid_utf8( $string, true );
+ }
+}
+
/**
* Send a JSON response back to an Ajax request.
*
*/
function wp_send_json( $response ) {
@header( 'Content-Type: application/json; charset=' . get_option( 'blog_charset' ) );
- echo json_encode( $response );
+ echo wp_json_encode( $response );
if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
wp_die();
else
/**
* Send a JSON response back to an Ajax request, indicating failure.
*
+ * If the `$data` parameter is a {@see WP_Error} object, the errors
+ * within the object are processed and output as an array of error
+ * codes and corresponding messages. All other types are output
+ * without further processing.
+ *
* @since 3.5.0
+ * @since 4.1.0 The `$data` parameter is now processed if a {@see WP_Error}
+ * object is passed in.
*
* @param mixed $data Data to encode as JSON, then print and die.
*/
function wp_send_json_error( $data = null ) {
$response = array( 'success' => false );
- if ( isset( $data ) )
- $response['data'] = $data;
+ if ( isset( $data ) ) {
+ if ( is_wp_error( $data ) ) {
+ $result = array();
+ foreach ( $data->errors as $code => $messages ) {
+ foreach ( $messages as $message ) {
+ $result[] = array( 'code' => $code, 'message' => $message );
+ }
+ }
+
+ $response['data'] = $result;
+ } else {
+ $response['data'] = $data;
+ }
+ }
wp_send_json( $response );
}
* Append the Widgets menu to the themes main menu.
*
* @since 2.2.0
- *
- * @uses $submenu The administration submenu list.
*/
function wp_widgets_add_menu() {
global $submenu;
*
* @since 2.3.2
*
- * @global wpdb $wpdb WordPress database access abstraction object.
+ * @global wpdb $wpdb WordPress database abstraction object.
*/
function dead_db() {
global $wpdb;
* Before this function is called, the argument must be checked for whether it was
* used by comparing it to its default value or evaluating whether it is empty.
* For example:
- * <code>
- * if ( ! empty( $deprecated ) ) {
- * _deprecated_argument( __FUNCTION__, '3.0' );
- * }
- * </code>
+ *
+ * if ( ! empty( $deprecated ) ) {
+ * _deprecated_argument( __FUNCTION__, '3.0' );
+ * }
+ *
*
* There is a hook deprecated_argument_run that will be called that can be used
* to get the backtrace up to what file and function used the deprecated
* @since 2.8.0
* @access private
*
- * @see http://core.trac.wordpress.org/ticket/8497
+ * @see https://core.trac.wordpress.org/ticket/8497
*
* @param string $str Header comment to clean up.
* @return string
* If the file data is not within that first 8kiB, then the author should correct
* their plugin file and move the data headers to the top.
*
- * @see http://codex.wordpress.org/File_Header
+ * @link http://codex.wordpress.org/File_Header
*
* @since 2.9.0
+ *
* @param string $file Path to the file.
* @param array $default_headers List of headers, in the format array('HeaderKey' => 'Header Name').
* @param string $context Optional. If specified adds filter hook "extra_{$context}_headers".
* Default empty.
+ * @return array Array of file headers in `HeaderKey => Header Value` format.
*/
function get_file_data( $file, $default_headers, $context = '' ) {
// We don't need to write to the file, so just open for reading.
/**
* Filter extra file headers by context.
*
- * The dynamic portion of the hook name, $context, refers to the context
- * where extra headers might be loaded.
+ * The dynamic portion of the hook name, `$context`, refers to
+ * the context where extra headers might be loaded.
*
* @since 2.9.0
*
*
* @since 3.4.0
*
- * @see http://core.trac.wordpress.org/ticket/19589
+ * @see https://core.trac.wordpress.org/ticket/19589
*
* @param string $ignore_class Optional. A class to ignore all function calls within - useful
* when you want to just give info about the callee. Default null.
* @since 3.6.0
* @access private
*
- * @see http://core.trac.wordpress.org/ticket/23688
+ * @see https://core.trac.wordpress.org/ticket/23688
*
* @param string $charset A charset name.
* @return string The canonical form of the charset.
}
/**
- * Alternative to filter_var( $var, FILTER_VALIDATE_BOOLEAN ).
+ * Filter/validate a variable as a boolean.
+ *
+ * Alternative to `filter_var( $var, FILTER_VALIDATE_BOOLEAN )`.
*
* @since 4.0.0
*
return $var;
}
- if ( 'false' === $var ) {
+ if ( is_string( $var ) && 'false' === strtolower( $var ) ) {
return false;
}