html - PHP Comparison Inversion -


following code excommerce shipping module:

      if (!is_admin_flag) {         global $cart;          $chk_products_in_cart = 0;         $chk_products_in_cart += $_session['cart']->in_cart_check('products_id', '12');         $chk_products_in_cart += $_session['cart']->in_cart_check('products_id', '22');          // not show florida 18 , new york 43         $chk_delivery_zone = $order->delivery['zone_id'];         $chk_states = '18, 43';         $arr1 = explode(", ", $chk_states);         $arr2 = explode(", ", $chk_delivery_zone);         $donotshow_state = array_intersect($arr1, $arr2);         if ((int)$donotshow_state && $chk_products_in_cart > 0) {           $this->enabled = false;         }       }

above code checks if items in shopping cart product id's 12 or 22 along shipping zone/state id 18 or 43. if both true, disables ($this->enabled = false;).

if products 12 or 22 in cart and shipping zone 18 or 43, disable

i want modify zone portion of be:

if products 12 or 22 in cart and shipping zone not 43, disable

use this:

if (!is_admin_flag) {         global $cart;          $chk_products_in_cart = 0;         $chk_products_in_cart += $_session['cart']->in_cart_check('products_id', '12');         $chk_products_in_cart += $_session['cart']->in_cart_check('products_id', '22');          // disable if not 43 , $chk_products_in_cart > 0         $arr2 = explode(", ", $order->delivery['zone_id']);         if (!in_array('43', $arr2) && $chk_products_in_cart > 0) {           $this->enabled = false;         }       }

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