edit_user

edit_user: 這個函式編輯具有給定ID的使用者。它接受一個使用者資料陣列作為它的第一個引數和一個可選的更新選項陣列作為它的第二個引數。

根據$_POST的內容編輯使用者設定

用於user-edit.php和profile.php，管理和處理使用者選項、密碼等。

function edit_user( $user_id = 0 ) {
	$wp_roles = wp_roles();
	$user     = new stdClass;
	$user_id  = (int) $user_id;
	if ( $user_id ) {
		$update           = true;
		$user->ID         = $user_id;
		$userdata         = get_userdata( $user_id );
		$user->user_login = wp_slash( $userdata->user_login );
	} else {
		$update = false;
	}

	if ( ! $update && isset( $_POST['user_login'] ) ) {
		$user->user_login = sanitize_user( wp_unslash( $_POST['user_login'] ), true );
	}

	$pass1 = '';
	$pass2 = '';
	if ( isset( $_POST['pass1'] ) ) {
		$pass1 = trim( $_POST['pass1'] );
	}
	if ( isset( $_POST['pass2'] ) ) {
		$pass2 = trim( $_POST['pass2'] );
	}

	if ( isset( $_POST['role'] ) && current_user_can( 'promote_users' ) && ( ! $user_id || current_user_can( 'promote_user', $user_id ) ) ) {
		$new_role = sanitize_text_field( $_POST['role'] );

		// If the new role isn't editable by the logged-in user die with error.
		$editable_roles = get_editable_roles();
		if ( ! empty( $new_role ) && empty( $editable_roles[ $new_role ] ) ) {
			wp_die( __( 'Sorry, you are not allowed to give users that role.' ), 403 );
		}

		$potential_role = isset( $wp_roles->role_objects[ $new_role ] ) ? $wp_roles->role_objects[ $new_role ] : false;

		/*
		 * Don't let anyone with 'promote_users' edit their own role to something without it.
		 * Multisite super admins can freely edit their roles, they possess all caps.
		 */
		if (
			( is_multisite() && current_user_can( 'manage_network_users' ) ) ||
			get_current_user_id() !== $user_id ||
			( $potential_role && $potential_role->has_cap( 'promote_users' ) )
		) {
			$user->role = $new_role;
		}
	}

	if ( isset( $_POST['email'] ) ) {
		$user->user_email = sanitize_text_field( wp_unslash( $_POST['email'] ) );
	}
	if ( isset( $_POST['url'] ) ) {
		if ( empty( $_POST['url'] ) || 'http://' === $_POST['url'] ) {
			$user->user_url = '';
		} else {
			$user->user_url = sanitize_url( $_POST['url'] );
			$protocols      = implode( '|', array_map( 'preg_quote', wp_allowed_protocols() ) );
			$user->user_url = preg_match( '/^(' . $protocols . '):/is', $user->user_url ) ? $user->user_url : 'http://' . $user->user_url;
		}
	}
	if ( isset( $_POST['first_name'] ) ) {
		$user->first_name = sanitize_text_field( $_POST['first_name'] );
	}
	if ( isset( $_POST['last_name'] ) ) {
		$user->last_name = sanitize_text_field( $_POST['last_name'] );
	}
	if ( isset( $_POST['nickname'] ) ) {
		$user->nickname = sanitize_text_field( $_POST['nickname'] );
	}
	if ( isset( $_POST['display_name'] ) ) {
		$user->display_name = sanitize_text_field( $_POST['display_name'] );
	}

	if ( isset( $_POST['description'] ) ) {
		$user->description = trim( $_POST['description'] );
	}

	foreach ( wp_get_user_contact_methods( $user ) as $method => $name ) {
		if ( isset( $_POST[ $method ] ) ) {
			$user->$method = sanitize_text_field( $_POST[ $method ] );
		}
	}

	if ( isset( $_POST['locale'] ) ) {
		$locale = sanitize_text_field( $_POST['locale'] );
		if ( 'site-default' === $locale ) {
			$locale = '';
		} elseif ( '' === $locale ) {
			$locale = 'en_US';
		} elseif ( ! in_array( $locale, get_available_languages(), true ) ) {
			$locale = '';
		}

		$user->locale = $locale;
	}

	if ( $update ) {
		$user->rich_editing         = isset( $_POST['rich_editing'] ) && 'false' === $_POST['rich_editing'] ? 'false' : 'true';
		$user->syntax_highlighting  = isset( $_POST['syntax_highlighting'] ) && 'false' === $_POST['syntax_highlighting'] ? 'false' : 'true';
		$user->admin_color          = isset( $_POST['admin_color'] ) ? sanitize_text_field( $_POST['admin_color'] ) : 'fresh';
		$user->show_admin_bar_front = isset( $_POST['admin_bar_front'] ) ? 'true' : 'false';
	}

	$user->comment_shortcuts = isset( $_POST['comment_shortcuts'] ) && 'true' === $_POST['comment_shortcuts'] ? 'true' : '';

	$user->use_ssl = 0;
	if ( ! empty( $_POST['use_ssl'] ) ) {
		$user->use_ssl = 1;
	}

	$errors = new WP_Error();

	/* checking that username has been typed */
	if ( '' === $user->user_login ) {
		$errors->add( 'user_login', __( '<strong>Error:</strong> Please enter a username.' ) );
	}

	/* checking that nickname has been typed */
	if ( $update && empty( $user->nickname ) ) {
		$errors->add( 'nickname', __( '<strong>Error:</strong> Please enter a nickname.' ) );
	}

	/**
	 * Fires before the password and confirm password fields are checked for congruity.
	 *
	 * @since 1.5.1
	 *
	 * @param string $user_login The username.
	 * @param string $pass1     The password (passed by reference).
	 * @param string $pass2     The confirmed password (passed by reference).
	 */
	do_action_ref_array( 'check_passwords', array( $user->user_login, &$pass1, &$pass2 ) );

	// Check for blank password when adding a user.
	if ( ! $update && empty( $pass1 ) ) {
		$errors->add( 'pass', __( '<strong>Error:</strong> Please enter a password.' ), array( 'form-field' => 'pass1' ) );
	}

	// Check for "" in password.
	if ( false !== strpos( wp_unslash( $pass1 ), '\' ) ) {
		$errors->add( 'pass', __( '<strong>Error:</strong> Passwords may not contain the character "\".' ), array( 'form-field' => 'pass1' ) );
	}

	// Checking the password has been typed twice the same.
	if ( ( $update || ! empty( $pass1 ) ) && $pass1 != $pass2 ) {
		$errors->add( 'pass', __( '<strong>Error:</strong> Passwords do not match. Please enter the same password in both password fields.' ), array( 'form-field' => 'pass1' ) );
	}

	if ( ! empty( $pass1 ) ) {
		$user->user_pass = $pass1;
	}

	if ( ! $update && isset( $_POST['user_login'] ) && ! validate_username( $_POST['user_login'] ) ) {
		$errors->add( 'user_login', __( '<strong>Error:</strong> This username is invalid because it uses illegal characters. Please enter a valid username.' ) );
	}

	if ( ! $update && username_exists( $user->user_login ) ) {
		$errors->add( 'user_login', __( '<strong>Error:</strong> This username is already registered. Please choose another one.' ) );
	}

	/** This filter is documented in wp-includes/user.php */
	$illegal_logins = (array) apply_filters( 'illegal_user_logins', array() );

	if ( in_array( strtolower( $user->user_login ), array_map( 'strtolower', $illegal_logins ), true ) ) {
		$errors->add( 'invalid_username', __( '<strong>Error:</strong> Sorry, that username is not allowed.' ) );
	}

	/* checking email address */
	if ( empty( $user->user_email ) ) {
		$errors->add( 'empty_email', __( '<strong>Error:</strong> Please enter an email address.' ), array( 'form-field' => 'email' ) );
	} elseif ( ! is_email( $user->user_email ) ) {
		$errors->add( 'invalid_email', __( '<strong>Error:</strong> The email address is not correct.' ), array( 'form-field' => 'email' ) );
	} else {
		$owner_id = email_exists( $user->user_email );
		if ( $owner_id && ( ! $update || ( $owner_id != $user->ID ) ) ) {
			$errors->add( 'email_exists', __( '<strong>Error:</strong> This email is already registered. Please choose another one.' ), array( 'form-field' => 'email' ) );
		}
	}

	/**
	 * Fires before user profile update errors are returned.
	 *
	 * @since 2.8.0
	 *
	 * @param WP_Error $errors WP_Error object (passed by reference).
	 * @param bool     $update Whether this is a user update.
	 * @param stdClass $user   User object (passed by reference).
	 */
	do_action_ref_array( 'user_profile_update_errors', array( &$errors, $update, &$user ) );

	if ( $errors->has_errors() ) {
		return $errors;
	}

	if ( $update ) {
		$user_id = wp_update_user( $user );
	} else {
		$user_id = wp_insert_user( $user );
		$notify  = isset( $_POST['send_user_notification'] ) ? 'both' : 'admin';

		/**
		 * Fires after a new user has been created.
		 *
		 * @since 4.4.0
		 *
		 * @param int|WP_Error $user_id ID of the newly created user or WP_Error on failure.
		 * @param string       $notify  Type of notification that should happen. See
		 *                              wp_send_new_user_notifications() for more information.
		 */
		do_action( 'edit_user_created_user', $user_id, $notify );
	}
	return $user_id;
}