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wpdb::update( string $table, array $data, array $where, array|string $format = null, array|string $where_format = null )

Updates a row in the table.

Description

Examples: wpdb::update( ‘table’, array( ‘column’ => ‘foo’, ‘field’ => ‘bar’ ), array( ‘ID’ => 1 ) ) wpdb::update( ‘table’, array( ‘column’ => ‘foo’, ‘field’ => 1337 ), array( ‘ID’ => 1 ), array( ‘%s’, ‘%d’ ), array( ‘%d’ ) )

See also

Parameters

$table

(string) (Required) Table name.

$data

(array) (Required) Data to update (in column => value pairs). Both $data columns and $data values should be "raw" (neither should be SQL escaped). Sending a null value will cause the column to be set to NULL

  • the corresponding format is ignored in this case.

$where

(array) (Required) A named array of WHERE clauses (in column => value pairs). Multiple clauses will be joined with ANDs. Both $where columns and $where values should be "raw". Sending a null value will create an IS NULL comparison

  • the corresponding format will be ignored in this case.

$format

(array|string) (Optional) An array of formats to be mapped to each of the values in $data. If string, that format will be used for all of the values in $data. A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $data will be treated as strings unless otherwise specified in wpdb::$field_types.

Default value: null

$where_format

(array|string) (Optional) An array of formats to be mapped to each of the values in $where. If string, that format will be used for all of the items in $where. A format is one of '%d', '%f', '%s' (integer, float, string). If omitted, all values in $where will be treated as strings.

Default value: null

Return

(int|false) The number of rows updated, or false on error.

Source

File: wp-includes/wp-db.php 

public function update( $table, $data, $where, $format = null, $where_format = null ) {
		if ( ! is_array( $data ) || ! is_array( $where ) ) {
			return false;
		}

		$data = $this->process_fields( $table, $data, $format );
		if ( false === $data ) {
			return false;
		}
		$where = $this->process_fields( $table, $where, $where_format );
		if ( false === $where ) {
			return false;
		}

		$fields     = array();
		$conditions = array();
		$values     = array();
		foreach ( $data as $field => $value ) {
			if ( is_null( $value['value'] ) ) {
				$fields[] = "`$field` = NULL";
				continue;
			}

			$fields[] = "`$field` = " . $value['format'];
			$values[] = $value['value'];
		}
		foreach ( $where as $field => $value ) {
			if ( is_null( $value['value'] ) ) {
				$conditions[] = "`$field` IS NULL";
				continue;
			}

			$conditions[] = "`$field` = " . $value['format'];
			$values[]     = $value['value'];
		}

		$fields     = implode( ', ', $fields );
		$conditions = implode( ' AND ', $conditions );

		$sql = "UPDATE `$table` SET $fields WHERE $conditions";

		$this->check_current_query = false;
		return $this->query( $this->prepare( $sql, $values ) );
	}

Uses

Uses Description
wp-includes/wp-db.php: wpdb::process_fields()

Processes arrays of field/value pairs and field formats.
wp-includes/wp-db.php: wpdb::query()

Performs a MySQL database query, using current database connection.
wp-includes/wp-db.php: wpdb::prepare()

Prepares a SQL query for safe execution.

Used By

Used By Description
wp-includes/ms-site.php: wp_update_site()

Updates a site in the database.
wp-includes/comment.php: wp_comments_personal_data_eraser()

Erases personal data associated with an email address from the comments table.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::trash_changeset_post()

Trash or delete a changeset post.
wp-includes/theme.php: _wp_keep_alive_customize_changeset_dependent_auto_drafts()

Makes sure that auto-draft posts get their post_date bumped or status changed to draft to prevent premature garbage-collection.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::_publish_changeset_values()

Publish changeset values.
wp-includes/post.php: wp_add_trashed_suffix_to_post_name_for_post()

Adds a trashed suffix for a given post.
wp-includes/option.php: update_network_option()

Updates the value of a network option that was already added.
wp-includes/ms-deprecated.php: update_user_status()

Update the status of a user in the database.
wp-admin/includes/upgrade.php: wp_install_defaults()

Creates the initial content for a newly-installed site.
wp-admin/includes/user.php: wp_delete_user()

Remove user and optionally reassign posts and links to another user.
wp-admin/includes/bookmark.php: wp_insert_link()

Inserts/updates links into/in the database.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::_display_rows_hierarchical()
wp-includes/pluggable.php: wp_set_password()

Updates the user’s password with a new encrypted one.
wp-includes/deprecated.php: update_usermeta()

Update metadata of user.
wp-includes/taxonomy.php: _update_post_term_count()

Will update term count based on object types of the current taxonomy.
wp-includes/taxonomy.php: _update_generic_term_count()

Will update term count based on number of objects.
wp-includes/taxonomy.php: wp_update_term()

Update term based on arguments provided.
wp-includes/taxonomy.php: wp_insert_term()

Add a new term to the database.
wp-includes/taxonomy.php: wp_delete_term()

Removes a term from the database.
wp-includes/option.php: update_option()

Updates the value of an option that was already added.
wp-includes/user.php: wp_insert_user()

Insert a user into the database.
wp-includes/post.php: _transition_post_status()

Hook for managing future post transitions to published.
wp-includes/post.php: wp_publish_post()

Publish a post by transitioning the post status.
wp-includes/post.php: add_ping()

Add a URL to those already pinged.
wp-includes/post.php: wp_insert_post()

Insert or update a post.
wp-includes/post.php: wp_delete_post()

Trash or delete a post or page.
wp-includes/post.php: wp_trash_post_comments()

Moves comments for a post to the Trash.
wp-includes/post.php: set_post_type()

Update the post type for the post ID.
wp-includes/revision.php: _wp_upgrade_revisions_of_post()

Upgrade the revisions author, add the current post as a revision and set the revisions version to 1
wp-includes/ms-functions.php: global_terms()

Maintains a canonical list of terms by syncing terms created for each blog with the global terms table.
wp-includes/ms-functions.php: wpmu_activate_signup()

Activate a signup.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::attach_uploads()

Attach upload to a post.
wp-includes/comment.php: wp_set_comment_status()

Sets the status of a comment.
wp-includes/comment.php: wp_update_comment()

Updates an existing comment in the database.
wp-includes/comment.php: wp_update_comment_count_now()

Updates the comment count for the post.
wp-includes/comment.php: do_trackbacks()

Perform trackbacks.
wp-includes/comment.php: wp_delete_comment()

Trashes or deletes a comment.
wp-includes/meta.php: update_metadata_by_mid()

Updates metadata by meta ID.
wp-includes/meta.php: update_metadata()

Updates metadata for the specified object. If no value already exists for the specified object ID and metadata key, the metadata will be added.

Changelog

Version Description
2.5.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wpdb/update