What are some best practices for implementing a "Freitextsuche" (free text search) for a MySQL database using PHP?

Implementing a "Freitextsuche" (free text search) for a MySQL database using PHP involves creating a search form where users can input keywords to search for in the database. The PHP script will then query the database using the entered keywords and return relevant results. 

<?php
// Establish a connection 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);
}

// Get the search query from the form
$search_query = $_POST['search_query'];

// Query the database for relevant results
$sql = "SELECT * FROM table_name WHERE column_name LIKE '%$search_query%'";
$result = $conn->query($sql);

// Display the search results
if ($result->num_rows > 0) {
    while($row = $result->fetch_assoc()) {
        echo "ID: " . $row["id"]. " - Name: " . $row["name"]. "<br>";
    }
} else {
    echo "0 results found";
}

// Close the database connection
$conn->close();
?>

Keywords

MySQL PHP Freitextsuche search implementation best practices

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