In PHP, what are the best practices for handling recursive function calls and capturing return values for further processing?

When dealing with recursive function calls in PHP, it is important to properly capture the return values from each call to ensure correct processing. One common approach is to store the return values in an array or another data structure and then process them accordingly once the recursion is complete. 

// Example of handling recursive function calls and capturing return values

function recursiveFunction($num) {
    if ($num == 0) {
        return 0;
    }
    
    $result = $num + recursiveFunction($num - 1);
    
    return $result;
}

// Call the recursive function and capture the return value
$returnValue = recursiveFunction(5);
echo $returnValue; // Output: 15

Keywords

recursion function calls return values processing PHP

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