In what scenarios would it be more appropriate to use the in_array() function instead of array_search() in PHP?

When you only need to check if a value exists in an array and do not need to know its key, it is more appropriate to use the in_array() function instead of array_search(). This is because in_array() simply returns a boolean value indicating whether the value is present in the array, while array_search() returns the key of the value if found, or false if not found.

// Using in_array() to check if a value exists in an array
$array = [1, 2, 3, 4, 5];
$value = 3;

if (in_array($value, $array)) {
    echo "Value exists in the array.";
} else {
    echo "Value does not exist in the array.";
}