What are some potential pitfalls of using in_array() in PHP, as seen in the code provided?

The potential pitfall of using in_array() in PHP is that it performs a loose comparison when checking for values in an array. This can lead to unexpected results, especially when dealing with different data types or values that can be interpreted as truthy or falsy. To solve this issue, you can use the strict comparison operator (===) instead of in_array() to ensure both the value and the type match.

// Example code with the fix using strict comparison
$value = 1;
$array = [1, 2, 3];

if (in_array($value, $array, true)) {
    echo "Value found in array.";
} else {
    echo "Value not found in array.";
}