How can the issue of "Undefined offset" be resolved when accessing arrays in PHP?

When accessing arrays in PHP, the "Undefined offset" issue occurs when trying to access an index that does not exist in the array. To resolve this issue, you can check if the index exists before accessing it using functions like isset() or array_key_exists(). This helps prevent the error and ensures that your code runs smoothly.

// Example code to resolve "Undefined offset" issue when accessing arrays
$array = [1, 2, 3, 4, 5];

$index = 5;

if (isset($array[$index])) {
    echo "Value at index $index: " . $array[$index];
} else {
    echo "Index $index does not exist in the array.";
}