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wpdb Class WordPress Developer Resources

    WordPress provides a global object, $wpdb, which is an instantiation of the wpdb class. By default, $wpdb is instantiated to talk to the WordPress database. The recommended way to access $wpdb in your WordPress PHP code is to declare $wpdb as a global variable using …

Understanding and using $wpdb object in WordPress - Designmodo

    Nov 01, 2012 · Understanding wpdb and $wpdb. For performing database operations WordPress provides a class wpdb which is present in the file – wp-includes\wp-db.php. This class abstracts the database functions for WordPress and most WordPress functions directly or indirectly use this class. This class is based on the ezSQL class.

What $wpdb Is, and Why I Try Not To Use It • WPShout

    Dec 01, 2015 · Because WordPress stores all its “content” in the database. For most people, that makes it even more important (and harder to replace) than their plugins and themes, and possibly even media files. In the simplest terms possible $wpdb is how the database is accessed 99% of the time on a WordPress site. It’s WordPress’s database interacting agent. In the simplest terms possible $wpdb is how the database is accessed 99% of the time on a WordPress …

Using wpdb in WordPress - Duc Doan

    Jan 10, 2016 · WordPress defines a class called wpdb, which contains a set of functions used to interact with a database. Because this function is built into WordPress, there is no need to open a separate database connection. Because methods in the wpdb class should not be called directly. We have to use the global $wpdb object instead!

wp_insert_term() Function WordPress Developer Resources

    */ $term_group = $wpdb->get_var( "SELECT MAX(term_group) FROM $wpdb->terms" ) + 1; wp_update_term( $alias->term_id, $taxonomy, array( 'term_group' => $term_group, ) ); } } /* * Prevent the creation of terms …

WP_Term Class WordPress Developer Resources

    File: wp-includes/class-wp-term.php. $terms = $wpdb->get_results ( $wpdb->prepare ( "SELECT t.*, tt.*. FROM $wpdb->terms AS t INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id …

wpdb::escape() Method WordPress Developer Resources

    Do not use, deprecated.

wp_set_object_terms() Function WordPress Developer ...

    function wp_set_object_terms( $object_id, $terms, $taxonomy, $append = false ) { global $wpdb; $object_id = (int) $object_id; if ( ! taxonomy_exists( $taxonomy ) ) { return new WP_Error( 'invalid_taxonomy', __( 'Invalid taxonomy.' ) ); } if ( ! is_array( $terms ) ) { $terms = array( $terms ); } if ( ! $append ) { $old_tt_ids = wp_get_object_terms( $object_id, $taxonomy, array( 'fields' => 'tt_ids', …

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