wpdb (tag)
| maybe_convert_table_to_utf8mb4() | Converts table fields to the encoding |
| wpdb::delete() | Deletes rows from the table based on the condition specified in the $where parameter. |
| wpdb::esc_like() | Prepares a string for use in the LIKE part of an SQL query. Processes special characters |
| wpdb::get_col() | Makes a request and retrieves data from one column of the database table as an array. |
| wpdb::get_col_info() | Gets an array with information about the columns of the last query. |
| wpdb::get_results() | Gets all data of the specified query (all rows and columns). The result is returned as an array. Each element of the array is an object with data of a separate row of the table. |
| wpdb::get_row() | Gets the first row from the result of an SQL query. Returns the row as an object. |
| wpdb::get_var() | Gets the value of a single cell from the query result. By default, the first cell is taken — this is the first column and the first row. |
| wpdb::insert() | Inserts a row (the specified data) into the specified table. |
| wpdb::prepare() | Allows writing an SQL query with sanitization of the parameters passed to it. |
| wpdb::query() | Executes any queries to the WordPress database. |
| wpdb::replace() | Обновляет или создает строку в таблице. |
| wpdb::update() | Updates the specified data in the specified row of the DB table. |