PHP - issue with array_count_values method

Question

The skuArray is being populated with values from an XML file, using the simplexml_load_file method and the first foreach loop below:

$XMLproducts = simplexml_load_file("products.xml");
$skuArray = array();
foreach($XMLproducts->product as $Product) {
$skuArray[] = (string)$Product->sku;  // Product->sku contains the sku value obtained from the XML file
}

In this case, the values inserted into the skuArray are (5, 7, 3, 7, 1, 5, 7).

After the array is populated, we then check to see if any duplicate values exist in the skuArray using array_count_values method. If so, an if statement executes some code.

$multipleSku = array_count_values($skuArray);

The if statement in this foreach loop is NOT executing the code, even when multiple values exist in the array (5 and 7 are in this array multiple times).

foreach($XMLproducts->product as $Product) {    
  if ($multipleSku[$Product->sku] > 1) {
    echo $Product->sku;
  }
}

The code looks to be written correctly! Any advice? Thanks!

Answer 1

try this

foreach($XMLproducts->product as $Product) { 
  $sku = (string) $Product->sku;
  if ($multipleSku[$sku] > 1) {
    echo $Product->sku;
  }
}