What potential issues can arise when reusing a script that manipulates arrays in PHP?

One potential issue that can arise when reusing a script that manipulates arrays in PHP is that the script may not properly handle different array structures or types. To solve this issue, you can add checks in the script to ensure that the input array is valid before performing any manipulations.

// Check if input is an array before manipulating it
if (!is_array($inputArray)) {
    echo "Input is not a valid array.";
    // Handle the error or return early
}

// Perform array manipulations here
// Example: sorting the array
sort($inputArray);

// Output the manipulated array
print_r($inputArray);