Check if and only if array contains a specific object

Question

I need to set $use_paypal to TRUE only if the $products array contains one or more objects with term_id property set to 36.

This code works if $products contains one or more 36-items, but it also sets $use_paypal to TRUE if $products contains other items.

$use_paypal = FALSE;
foreach ($products as $product) {
  // The values could be 30, 31, 32, 33, 34, 35, 36
  if ($product->term_id == 36) {
    $use_paypal = TRUE;
  }
}
return $use_paypal;

I only need to use PayPal if the item in your cart are all apparel. If you have accessories, apparel etc. then, it should return false, — user3176382
– user3176382, Commented Sep 12, 2016 at 6:32

Peter · Accepted Answer · 2016-09-12 07:23:01Z

3

To make sure all of your products have apparel_id = 36 what I would do is set $use_paypal to true by default and if any of the products do not match, switch it to false. Take a look at this example:

foreach ($products as $product) {
    if ($product->term_id != 36) {
        return false;
    }
}
return true;

To make you understand what happens.

We set $use_paypal to true
We loop through all products
For each product we check if $product->term_id is not 36
If the term_id is not 36 we set $use_paypal to false

edited Sep 12, 2016 at 7:23

answered Sep 12, 2016 at 6:38

Peter

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4 Comments

user3176382 Over a year ago

Thank you. I'll try this one. Just a bit confused, what if the items in cart has values like this 30, 31, 36? Will it return to true?

Peter Over a year ago

No it will not. It will only return true if they are all 36

user3176382 Over a year ago

Well, your explanation above really makes sense. Thank you so much for your help :)

Geek Josh Over a year ago

You could improve the efficiency of this function by simply returning false inside the loop - there's no need to continue checking items once we know there is a mismatch

masterFly · Accepted Answer · 2016-09-12 06:39:29Z

0

Assuming you cart items list is an array, like this,

$cart_items[] = $product (object);
$cart_items[] = $product (object);

you can use a function like below to do your work.

function isPaypal($cart_items){
    foreach( $cart_items as $product ){
        if ( $product->term_id != 36 ){
            return FALSE;
        }
    }
    return TRUE;
}

answered Sep 12, 2016 at 6:39

masterFly

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