In PHP, what are some alternative approaches to handling scenarios where the input to a function may be an array or a single string?

When dealing with scenarios where the input to a function may be an array or a single string, one approach is to check the type of the input using the `is_array()` function and then handle the input accordingly. Another approach is to always convert the input into an array, even if it's a single string, to ensure consistency in how the input is processed within the function. 

function processInput($input) {
    if (is_array($input)) {
        foreach ($input as $value) {
            // Process each element of the array
            echo $value . "<br>";
        }
    } else {
        // Convert single string input into an array
        $input = [$input];
        foreach ($input as $value) {
            // Process the single string input
            echo $value . "<br>";
        }
    }
}

// Test the function with an array input
$inputArray = ["apple", "banana", "cherry"];
processInput($inputArray);

// Test the function with a single string input
$inputString = "orange";
processInput($inputString);

Keywords

array string type checking is_array implode

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