What is the best approach to handling queries for multiple categories within an array in PHP?

When handling queries for multiple categories within an array in PHP, the best approach is to use a foreach loop to iterate through the array and check if each element matches the desired category. You can then perform the necessary actions based on the category match. 

$categories = ['category1', 'category2', 'category3'];
$data = ['item1' => 'category1', 'item2' => 'category2', 'item3' => 'category1'];

foreach ($data as $item => $category) {
    if (in_array($category, $categories)) {
        // Perform actions for items in desired categories
        echo "$item is in a desired category: $category\n";
    }
}

Keywords

PHP array queries categories handling

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