What are some best practices for implementing a search function on a website using PHP?

Implementing a search function on a website using PHP involves creating a form for users to input their search query, processing the input on the server side, querying the database for relevant results, and displaying the results to the user. 

<?php
// Connect to the database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "database";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Process search query
if(isset($_GET['search'])) {
    $search = $_GET['search'];
    
    // Query the database for relevant results
    $sql = "SELECT * FROM table WHERE column LIKE '%$search%'";
    $result = $conn->query($sql);
    
    // Display search results
    if ($result->num_rows > 0) {
        while($row = $result->fetch_assoc()) {
            echo "Result: " . $row["column"] . "<br>";
        }
    } else {
        echo "No results found.";
    }
}

$conn->close();
?>

Keywords

PHP search function website implementation best practices

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