How can PHP developers incorporate user input forms, like text boxes, into their code to interact with a MySQL database?

To incorporate user input forms, such as text boxes, into PHP code to interact with a MySQL database, developers can use HTML forms to collect user input and then use PHP to process the form data and execute SQL queries to interact with the database. 

<?php
// Check if the form is submitted
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Get user input from the form
    $user_input = $_POST['user_input'];

    // Connect to the MySQL database
    $conn = mysqli_connect("localhost", "username", "password", "database");

    // Execute SQL query using user input
    $sql = "INSERT INTO table_name (column_name) VALUES ('$user_input')";
    mysqli_query($conn, $sql);

    // Close the database connection
    mysqli_close($conn);
}
?>

<!-- HTML form with a text box for user input -->
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
    <input type="text" name="user_input">
    <input type="submit" value="Submit">
</form>

Keywords

PHP user input forms text boxes MySQL database interaction

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