Question

Is there any way to accomplish the following in WordPress with $wpdb->insert or

$wpdb->query($wpdb->prepare)):

INSERT into TABLE (column1, column2, column3) 
VALUES
('value1', 'value2', 'value3'),
('otherval1', 'otherval2', 'otherval3'),
('anotherval1', 'anotherval2', 'anotherval3')

…etc

Answer 1

OK, I figured it out!

Setup arrays for Actual Values, and Placeholders

$values = array();
$place_holders = array();

the initial Query:

$query = "INSERT INTO orders (order_id, product_id, quantity) VALUES ";

Then loop through the the values you’re looking to add, and insert them in the appropriate arrays:

foreach ( $_POST as $key => $value ) {
     array_push( $values, $value, $order_id );
     $place_holders[] = "('%d', '%d')" /* In my case, i know they will always be integers */
}

Then add these bits to the initial query:

$query .= implode( ', ', $place_holders );
$wpdb->query( $wpdb->prepare( "$query ", $values ) );