get wpdb class method names using get_class_methods
<?php global $wpdb; $class = get_class ($wpdb); echo "=====class=$class\n"; $methods = get_class_methods($class); echo "=====methods=" . print_r($methods, true);
Here is the outcome from above code:
=====class=wpdb =====methods=Array ( [0] => __construct [1] => __destruct [2] => __get [3] => __set [4] => __isset [5] => __unset [6] => init_charset [7] => set_charset [8] => set_sql_mode [9] => set_prefix [10] => set_blog_id [11] => get_blog_prefix [12] => tables [13] => select [14] => _weak_escape [15] => _real_escape [16] => _escape [17] => escape [18] => escape_by_ref [19] => prepare [20] => esc_like [21] => print_error [22] => show_errors [23] => hide_errors [24] => suppress_errors [25] => flush [26] => db_connect [27] => check_connection [28] => query [29] => insert [30] => replace [31] => _insert_replace_helper [32] => update [33] => delete [34] => get_var [35] => get_row [36] => get_col [37] => get_results [38] => get_col_charset [39] => get_col_length [40] => strip_invalid_text_for_column [41] => get_col_info [42] => timer_start [43] => timer_stop [44] => bail [45] => check_database_version [46] => supports_collation [47] => get_charset_collate [48] => has_cap [49] => get_caller [50] => db_version )