wp_update_user( array|object|WP_User $userdata )

更新数据库中的用户。
Update a user in the database.

目录锚点：#说明#参数#源码#笔记

说明（Description）

可以通过在$userdata参数数组中指定“user_pass”值来更新用户的密码。如果当前用户的密码正在更新，则cookies将被清除。另请参见#另请参阅wp_insert_user（）：了解可以在$userdata中设置哪些字段。

参数（Parameters）

源码（Source）

/**
 * Update a user in the database.
 *
 * It is possible to update a user's password by specifying the 'user_pass'
 * value in the $userdata parameter array.
 *
 * If current user's password is being updated, then the cookies will be
 * cleared.
 *
 * @since 2.0.0
 *
 * @see wp_insert_user() For what fields can be set in $userdata.
 *
 * @param mixed $userdata An array of user data or a user object of type stdClass or WP_User.
 * @return int|WP_Error The updated user's ID or a WP_Error object if the user could not be updated.
 */
function wp_update_user($userdata) {
	if ( $userdata instanceof stdClass ) {
		$userdata = get_object_vars( $userdata );
	} elseif ( $userdata instanceof WP_User ) {
		$userdata = $userdata->to_array();
	}

	$ID = isset( $userdata['ID'] ) ? (int) $userdata['ID'] : 0;
	if ( ! $ID ) {
		return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
	}

	// First, get all of the original fields
	$user_obj = get_userdata( $ID );
	if ( ! $user_obj ) {
		return new WP_Error( 'invalid_user_id', __( 'Invalid user ID.' ) );
	}

	$user = $user_obj->to_array();

	// Add additional custom fields
	foreach ( _get_additional_user_keys( $user_obj ) as $key ) {
		$user[ $key ] = get_user_meta( $ID, $key, true );
	}

	// Escape data pulled from DB.
	$user = add_magic_quotes( $user );

	if ( ! empty($userdata['user_pass']) ) {
		// If password is changing, hash it now
		$plaintext_pass = $userdata['user_pass'];
		$userdata['user_pass'] = wp_hash_password( $userdata['user_pass'] );

		/**
		 * Filter whether to send the password change email.
		 *
		 * @since 4.3.0
		 *
		 * @see wp_insert_user() For `$user` and `$userdata` fields.
		 *
		 * @param bool  $send     Whether to send the email.
		 * @param array $user     The original user array.
		 * @param array $userdata The updated user array.
		 *
		 */
		$send_password_change_email = apply_filters( 'send_password_change_email', true, $user, $userdata );
	}

	if ( isset( $userdata['user_email'] ) && $user['user_email'] !== $userdata['user_email'] ) {
		/**
		 * Filter whether to send the email change email.
		 *
		 * @since 4.3.0
		 *
		 * @see wp_insert_user() For `$user` and `$userdata` fields.
		 *
		 * @param bool  $send     Whether to send the email.
		 * @param array $user     The original user array.
		 * @param array $userdata The updated user array.
		 *
		 */
		$send_email_change_email = apply_filters( 'send_email_change_email', true, $user, $userdata );
	}

	wp_cache_delete( $user['user_email'], 'useremail' );

	// Merge old and new fields with new fields overwriting old ones.
	$userdata = array_merge( $user, $userdata );
	$user_id = wp_insert_user( $userdata );

	if ( ! is_wp_error( $user_id ) ) {

		$blog_name = wp_specialchars_decode( get_option( 'blogname' ) );

		if ( ! empty( $send_password_change_email ) ) {

			/* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
			$pass_change_text = __( 'Hi ###USERNAME###,

This notice confirms that your password was changed on ###SITENAME###.

If you did not change your password, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###' );

			$pass_change_email = array(
				'to'      => $user['user_email'],
				'subject' => __( '[%s] Notice of Password Change' ),
				'message' => $pass_change_text,
				'headers' => '',
			);

			/**
			 * Filter the contents of the email sent when the user's password is changed.
			 *
			 * @since 4.3.0
			 *
			 * @param array $pass_change_email {
			 *            Used to build wp_mail().
			 *            @type string $to      The intended recipients. Add emails in a comma separated string.
			 *            @type string $subject The subject of the email.
			 *            @type string $message The content of the email.
			 *                The following strings have a special meaning and will get replaced dynamically:
			 *                - ###USERNAME###    The current user's username.
			 *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
			 *                - ###EMAIL###       The old email.
			 *                - ###SITENAME###    The name of the site.
			 *                - ###SITEURL###     The URL to the site.
			 *            @type string $headers Headers. Add headers in a newline (
) separated string.
			 *        }
			 * @param array $user     The original user array.
			 * @param array $userdata The updated user array.
			 *
			 */
			$pass_change_email = apply_filters( 'password_change_email', $pass_change_email, $user, $userdata );

			$pass_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $pass_change_email['message'] );
			$pass_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $pass_change_email['message'] );
			$pass_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $pass_change_email['message'] );
			$pass_change_email['message'] = str_replace( '###SITENAME###', get_option( 'blogname' ), $pass_change_email['message'] );
			$pass_change_email['message'] = str_replace( '###SITEURL###', get_option( 'siteurl' ), $pass_change_email['message'] );

			wp_mail( $pass_change_email['to'], sprintf( $pass_change_email['subject'], $blog_name ), $pass_change_email['message'], $pass_change_email['headers'] );
		}

		if ( ! empty( $send_email_change_email ) ) {
			/* translators: Do not translate USERNAME, ADMIN_EMAIL, EMAIL, SITENAME, SITEURL: those are placeholders. */
			$email_change_text = __( 'Hi ###USERNAME###,

This notice confirms that your email was changed on ###SITENAME###.

If you did not change your email, please contact the Site Administrator at
###ADMIN_EMAIL###

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###' );

			$email_change_email = array(
				'to'      => $user['user_email'],
				'subject' => __( '[%s] Notice of Email Change' ),
				'message' => $email_change_text,
				'headers' => '',
			);

			/**
			 * Filter the contents of the email sent when the user's email is changed.
			 *
			 * @since 4.3.0
			 *
			 * @param array $email_change_email {
			 *            Used to build wp_mail().
			 *            @type string $to      The intended recipients.
			 *            @type string $subject The subject of the email.
			 *            @type string $message The content of the email.
			 *                The following strings have a special meaning and will get replaced dynamically:
			 *                - ###USERNAME###    The current user's username.
			 *                - ###ADMIN_EMAIL### The admin email in case this was unexpected.
			 *                - ###EMAIL###       The old email.
			 *                - ###SITENAME###    The name of the site.
			 *                - ###SITEURL###     The URL to the site.
			 *            @type string $headers Headers.
			 *        }
			 * @param array $user The original user array.
			 * @param array $userdata The updated user array.
			 */
			$email_change_email = apply_filters( 'email_change_email', $email_change_email, $user, $userdata );

			$email_change_email['message'] = str_replace( '###USERNAME###', $user['user_login'], $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###ADMIN_EMAIL###', get_option( 'admin_email' ), $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###EMAIL###', $user['user_email'], $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###SITENAME###', get_option( 'blogname' ), $email_change_email['message'] );
			$email_change_email['message'] = str_replace( '###SITEURL###', get_option( 'siteurl' ), $email_change_email['message'] );

			wp_mail( $email_change_email['to'], sprintf( $email_change_email['subject'], $blog_name ), $email_change_email['message'], $email_change_email['headers'] );
		}
	}

	// Update the cookies if the password changed.
	$current_user = wp_get_current_user();
	if ( $current_user->ID == $ID ) {
		if ( isset($plaintext_pass) ) {
			wp_clear_auth_cookie();

			// Here we calculate the expiration length of the current auth cookie and compare it to the default expiration.
			// If it's greater than this, then we know the user checked 'Remember Me' when they logged in.
			$logged_in_cookie    = wp_parse_auth_cookie( '', 'logged_in' );
			/** This filter is documented in wp-includes/pluggable.php */
			$default_cookie_life = apply_filters( 'auth_cookie_expiration', ( 2 * DAY_IN_SECONDS ), $ID, false );
			$remember            = ( ( $logged_in_cookie['expiration'] - time() ) > $default_cookie_life );

			wp_set_auth_cookie( $ID, $remember );
		}
	}

	return $user_id;
}

笔记（Notes）

示例显示如何更新用户的网站配置文件字段：