How to prevent duplicates within foreach PHP

2
votes

I'm trying to move customer order notes field to another field group, but because of other plugin overrides, I need to override WooCommerce template files too, so I need to move this code:

foreach ( $checkout->get_checkout_fields( 'order' ) as $key => $field ) :
    woocommerce_form_field( $key, $field, $checkout->get_value( $key ) ); 
endforeach;

from: "mytheme/woocommerce/checkout/form-shipping.php"
to: "mytheme/woocommerce/checkout/review-order.php".

Now I'm getting duplicated fields, how to prevent duplicates within foreach loop?

2
phpwordpresswoocommerceforeach
may be array_unique() will help you – Paritosh Mahale
@Paritosh Mahale maybe, but where? – Darko
In your foreach loop: foreach ( array_unique($checkout->get_checkout_fields('order')) as $key => $field ) – SteveK
checkout my answer – Paritosh Mahale
@SteveK not working with array_unique – Darko

2 Answers

3
votes

You can maintain an array to keep track of fields you've already seen so that they don't get added again.

$fields_seen = [];
foreach ( $checkout->get_checkout_fields( 'order' ) as $key => $field ) :
    if(!in_array($field, $fields_seen)) {
        woocommerce_form_field( $key, $field, $checkout->get_value( $key ) ); 
        $fields_seen[] = $field;
    }
endforeach;

Reference page for in_array: PHP in_array

1
votes

You can use array_unique() your code will look like this:

foreach ( array_unique($checkout->get_checkout_fields( 'order' )) as $key => $field ) :
    woocommerce_form_field( $key, $field, $checkout->get_value( $key ) ); 
endforeach;