if ( ! function_exists( 'wp_rand' ) ) :
* Generates a random number.
* @since 4.4.0 Uses PHP7 random_int() or the random_compat library if available.
* @global string $rnd_value
* @param int $min Lower limit for the generated number
* @param int $max Upper limit for the generated number
* @return int A random number between min and max
function wp_rand( $min = 0, $max = 0 ) {
// Some misconfigured 32-bit environments (Entropy PHP, for example)
// truncate integers larger than PHP_INT_MAX to PHP_INT_MAX rather than overflowing them to floats.
$max_random_number = 3000000000 === 2147483647 ? (float) '4294967295' : 4294967295; // 4294967295 = 0xffffffff
// We only handle ints, floats are truncated to their integer value.
// Use PHP's CSPRNG, or a compatible method.
static $use_random_int_functionality = true;
if ( $use_random_int_functionality ) {
$_max = ( 0 != $max ) ? $max : $max_random_number;
// wp_rand() can accept arguments in either order, PHP cannot.
$_max = max( $min, $_max );
$_min = min( $min, $_max );
$val = random_int( $_min, $_max );
$use_random_int_functionality = false;
$use_random_int_functionality = false;
} catch ( Exception $e ) {
$use_random_int_functionality = false;
// Reset $rnd_value after 14 uses.
// 32 (md5) + 40 (sha1) + 40 (sha1) / 8 = 14 random numbers from $rnd_value.
if ( strlen( $rnd_value ) < 8 ) {
if ( defined( 'WP_SETUP_CONFIG' ) ) {
$seed = get_transient( 'random_seed' );
$rnd_value = md5( uniqid( microtime() . mt_rand(), true ) . $seed );
$rnd_value .= sha1( $rnd_value );
$rnd_value .= sha1( $rnd_value . $seed );
$seed = md5( $seed . $rnd_value );
if ( ! defined( 'WP_SETUP_CONFIG' ) && ! defined( 'WP_INSTALLING' ) ) {
set_transient( 'random_seed', $seed );
// Take the first 8 digits for our value.
$value = substr( $rnd_value, 0, 8 );
// Strip the first eight, leaving the remainder for the next call to wp_rand().
$rnd_value = substr( $rnd_value, 8 );
$value = abs( hexdec( $value ) );
// Reduce the value to be within the min - max range.
$value = $min + ( $max - $min + 1 ) * $value / ( $max_random_number + 1 );
return abs( (int) $value );
if ( ! function_exists( 'wp_set_password' ) ) :
* Updates the user's password with a new encrypted one.
* For integration with other applications, this function can be overwritten to
* instead use the other package password checking algorithm.
* Please note: This function should be used sparingly and is really only meant for single-time
* application. Leveraging this improperly in a plugin or theme could result in an endless loop
* of password resets if precautions are not taken to ensure it does not execute on every page load.
* @global wpdb $wpdb WordPress database abstraction object.
* @param string $password The plaintext new user password
* @param int $user_id User ID
function wp_set_password( $password, $user_id ) {
$hash = wp_hash_password( $password );
'user_activation_key' => '',
array( 'ID' => $user_id )
clean_user_cache( $user_id );
if ( ! function_exists( 'get_avatar' ) ) :
* Retrieve the avatar `<img>` tag for a user, email address, MD5 hash, comment, or post.
* @since 4.2.0 Optional `$args` parameter added.
* @param mixed $id_or_email The Gravatar to retrieve. Accepts a user_id, gravatar md5 hash,
* user email, WP_User object, WP_Post object, or WP_Comment object.
* @param int $size Optional. Height and width of the avatar image file in pixels. Default 96.
* @param string $default Optional. URL for the default image or a default type. Accepts '404'
* (return a 404 instead of a default image), 'retro' (8bit), 'monsterid'
* (monster), 'wavatar' (cartoon face), 'indenticon' (the "quilt"),
* 'mystery', 'mm', or 'mysteryman' (The Oyster Man), 'blank' (transparent GIF),
* or 'gravatar_default' (the Gravatar logo). Default is the value of the
* 'avatar_default' option, with a fallback of 'mystery'.
* @param string $alt Optional. Alternative text to use in img tag. Default empty.
* Optional. Extra arguments to retrieve the avatar.
* @type int $height Display height of the avatar in pixels. Defaults to $size.
* @type int $width Display width of the avatar in pixels. Defaults to $size.
* @type bool $force_default Whether to always show the default image, never the Gravatar. Default false.
* @type string $rating What rating to display avatars up to. Accepts 'G', 'PG', 'R', 'X', and are
* judged in that order. Default is the value of the 'avatar_rating' option.
* @type string $scheme URL scheme to use. See set_url_scheme() for accepted values.
* @type array|string $class Array or string of additional classes to add to the img element.
* @type bool $force_display Whether to always show the avatar - ignores the show_avatars option.
* @type string $loading Value for the `loading` attribute.
* @type string $extra_attr HTML attributes to insert in the IMG element. Is not sanitized. Default empty.
* @return string|false `<img>` tag for the user's avatar. False on failure.
function get_avatar( $id_or_email, $size = 96, $default = '', $alt = '', $args = null ) {
// get_avatar_data() args.
'default' => get_option( 'avatar_default', 'mystery' ),
'force_default' => false,
'rating' => get_option( 'avatar_rating' ),
'force_display' => false,
if ( wp_lazy_loading_enabled( 'img', 'get_avatar' ) ) {
$defaults['loading'] = 'lazy';
$args['size'] = (int) $size;
$args['default'] = $default;
$args = wp_parse_args( $args, $defaults );
if ( empty( $args['height'] ) ) {
$args['height'] = $args['size'];
if ( empty( $args['width'] ) ) {
$args['width'] = $args['size'];
if ( is_object( $id_or_email ) && isset( $id_or_email->comment_ID ) ) {
$id_or_email = get_comment( $id_or_email );
* Allows the HTML for a user's avatar to be returned early.
* Passing a non-null value will effectively short-circuit get_avatar(), passing
* the value through the {@see 'get_avatar'} filter and returning early.
* @param string|null $avatar HTML for the user's avatar. Default null.
* @param mixed $id_or_email The avatar to retrieve. Accepts a user_id, Gravatar MD5 hash,
* user email, WP_User object, WP_Post object, or WP_Comment object.
* @param array $args Arguments passed to get_avatar_url(), after processing.
$avatar = apply_filters( 'pre_get_avatar', null, $id_or_email, $args );
if ( ! is_null( $avatar ) ) {
/** This filter is documented in wp-includes/pluggable.php */
return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args );
if ( ! $args['force_display'] && ! get_option( 'show_avatars' ) ) {
$url2x = get_avatar_url( $id_or_email, array_merge( $args, array( 'size' => $args['size'] * 2 ) ) );
$args = get_avatar_data( $id_or_email, $args );
if ( ! $url || is_wp_error( $url ) ) {
$class = array( 'avatar', 'avatar-' . (int) $args['size'], 'photo' );
if ( ! $args['found_avatar'] || $args['force_default'] ) {
$class[] = 'avatar-default';
if ( is_array( $args['class'] ) ) {
$class = array_merge( $class, $args['class'] );
$class[] = $args['class'];
// Add `loading` attribute.
$extra_attr = $args['extra_attr'];
$loading = $args['loading'];
if ( in_array( $loading, array( 'lazy', 'eager' ), true ) && ! preg_match( '/\bloading\s*=/', $extra_attr ) ) {
if ( ! empty( $extra_attr ) ) {
$extra_attr .= "loading='{$loading}'";
"<img alt='%s' src='%s' srcset='%s' class='%s' height='%d' width='%d' %s/>",
esc_attr( $args['alt'] ),
esc_url( $url2x ) . ' 2x',
esc_attr( implode( ' ', $class ) ),
* Filters the HTML for a user's avatar.
* @since 4.2.0 The `$args` parameter was added.
* @param string $avatar HTML for the user's avatar.
* @param mixed $id_or_email The avatar to retrieve. Accepts a user_id, Gravatar MD5 hash,
* user email, WP_User object, WP_Post object, or WP_Comment object.
* @param int $size Square avatar width and height in pixels to retrieve.
* @param string $default URL for the default image or a default type. Accepts '404', 'retro', 'monsterid',
* 'wavatar', 'indenticon', 'mystery', 'mm', 'mysteryman', 'blank', or 'gravatar_default'.
* Default is the value of the 'avatar_default' option, with a fallback of 'mystery'.
* @param string $alt Alternative text to use in the avatar image tag. Default empty.
* @param array $args Arguments passed to get_avatar_data(), after processing.
return apply_filters( 'get_avatar', $avatar, $id_or_email, $args['size'], $args['default'], $args['alt'], $args );
if ( ! function_exists( 'wp_text_diff' ) ) :
* Displays a human readable HTML representation of the difference between two strings.
* The Diff is available for getting the changes between versions. The output is
* HTML, so the primary use is for displaying the changes. If the two strings
* are equivalent, then an empty string will be returned.
* @see wp_parse_args() Used to change defaults to user defined settings.
* @uses WP_Text_Diff_Renderer_Table
* @param string $left_string "old" (left) version of string
* @param string $right_string "new" (right) version of string
* @param string|array $args {
* Associative array of options to pass to WP_Text_Diff_Renderer_Table().
* @type string $title Titles the diff in a manner compatible
* with the output. Default empty.
* @type string $title_left Change the HTML to the left of the title.
* @type string $title_right Change the HTML to the right of the title.
* @type bool $show_split_view True for split view (two columns), false for
* un-split view (single column). Default true.
* @return string Empty string if strings are equivalent or HTML with differences.
function wp_text_diff( $left_string, $right_string, $args = null ) {
'show_split_view' => true,
$args = wp_parse_args( $args, $defaults );
if ( ! class_exists( 'WP_Text_Diff_Renderer_Table', false ) ) {
require ABSPATH . WPINC . '/wp-diff.php';
$left_string = normalize_whitespace( $left_string );
$right_string = normalize_whitespace( $right_string );
$left_lines = explode( "\n", $left_string );
$right_lines = explode( "\n", $right_string );
$text_diff = new Text_Diff( $left_lines, $right_lines );
$renderer = new WP_Text_Diff_Renderer_Table( $args );
$diff = $renderer->render( $text_diff );
$is_split_view = ! empty( $args['show_split_view'] );
$is_split_view_class = $is_split_view ? ' is-split-view' : '';
$r = "<table class='diff$is_split_view_class'>\n";
$r .= "<caption class='diff-title'>$args[title]</caption>\n";
if ( $args['title_left'] || $args['title_right'] ) {
if ( $args['title_left'] || $args['title_right'] ) {
$th_or_td_left = empty( $args['title_left'] ) ? 'td' : 'th';
$th_or_td_right = empty( $args['title_right'] ) ? 'td' : 'th';
$r .= "<tr class='diff-sub-title'>\n";
$r .= "\t<$th_or_td_left>$args[title_left]</$th_or_td_left>\n";
$r .= "\t<$th_or_td_right>$args[title_right]</$th_or_td_right>\n";
if ( $args['title_left'] || $args['title_right'] ) {
$r .= "<tbody>\n$diff\n</tbody>\n";
It is recommended that you Edit text format, this type of Fix handles quite a lot in one request
