This document contains PHP code for a form that allows a user to submit a first name to a MySQL database. It includes code for connecting to the MySQL database, displaying the form, validating and sanitizing the submitted data, inserting the data into a database table on form submission, and handling success/error responses.

1. PHP-MYSQL Script

2. PHP FORM <?php require_once ('mysql/mysql_connect.php'); if (isset($_POST['submit'])) { // Handle the form. { // Add name to the database. $query = "INSERT INTO your_table (first_name) VALUES ('$first_name')"; if ($result = @mysql_query ($query)) { // Worked. echo '<p>The name has been saved.</p>'; } else { // If the query did not run OK. echo '<p><font color="red">Your submission could not be processed due to a system error.</font></p>'; } } else { // Failed a test. echo '<p><font color="red">Please click "back" and try again.</font></p>'; } } else { // Display the form. ?>

3. PHP FORM CONTINUATION <form enctype="multipart/form-data" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post"> <div id="content"> <h2> Add Name</h2> </div> <table> <tr> <td>First Name:</td> <td><input type="text" name="first_name" size="30" maxlength="30" value="<?php if (isset($_POST['first_name'])) echo $_POST['first_name']; ?>" /></td> </tr> </table> <div align="center"><input type="submit" name="submit" value="Submit" /></div> </form><!-- End of Form --> <?php } // End of main conditional. ?>

4. Mysql Connect <?php // This file contains the database access information for the database. This file also establishes a connection to MySQL and selects the database. define ('DB_USER', 'root'); define ('DB_PASSWORD', ''); define ('DB_HOST', 'localhost'); define ('DB_NAME', ''); // Make the connnection and then select the database. $dbc = @mysql_connect (DB_HOST, DB_USER, DB_PASSWORD) OR die ('Could not connect to MySQL: ' . mysql_error() ); mysql_select_db (DB_NAME) OR die ('Could not select the database: ' . mysql_error() ); // Function for escaping and trimming form data. function escape_data ($data) { global $dbc; if (ini_get('magic_quotes_gpc')) { $data = stripslashes($data); } return mysql_real_escape_string (trim ($data), $dbc); } // End of escape_data() function. ?>