How can prepared statements be implemented in WordPress?

Prepared statements can be implemented in WordPress by using the global $wpdb object to interact with the WordPress database. This helps prevent SQL injection attacks by automatically escaping input values. To use prepared statements, you can use the $wpdb->prepare() method to create a safe SQL query with placeholders for variables. 

global $wpdb;

$user_id = 5;
$user_email = 'test@example.com';

$query = $wpdb->prepare( "SELECT * FROM $wpdb->users WHERE ID = %d AND user_email = %s", $user_id, $user_email );

$results = $wpdb->get_results( $query );

Keywords

WordPress prepared statements SQL injection mysqli PDO

Related Questions