What is the difference between server-side and client-side solutions for auto-completion in PHP?

Server-side auto-completion in PHP involves sending a request to the server to fetch data based on user input, while client-side auto-completion uses JavaScript to filter through preloaded data on the client side. Server-side solutions are more secure as they do not expose the entire dataset to the client, but they may result in slower response times due to the round-trip to the server. Client-side solutions are faster but may not be as secure if sensitive data is exposed. 

// Server-side auto-completion example
$input = $_GET['input'];
$database = ['apple', 'banana', 'cherry', 'date', 'grape'];
$results = array_filter($database, function($item) use ($input) {
    return stripos($item, $input) !== false;
});
echo json_encode($results);

Keywords

server-side client-side auto-completion PHP difference

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