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Catchable Fatal Error In Chapter 8 Script 8.3

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Good day, nice book! I ve been getting along fine with it up to chapter 8. At first i wrote the codes then cross checked it with yours and ran it after clicking register on my web browser i get this error:

catchable fatal error: object of class mysqli_result could not be converted to string in c:\wamp\www\tutorials\mysqli_connect.php on line 17


i copied your script from the downloads and replaced my script but still same error dont know what to do. I checked my database to see if the name was included but nada. Pls help me. I m using wamp and my mysqli version is 5.5.20

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thanks for replying back at such short notice.

here is the code i tried earlier.

<?php # Script 8.3 - register.php

$page_title = 'Register';
include ('/includes/header.html');

// Check if the form has been submitted:
if (isset($_POST['submitted'])) {

    $errors = array(); // Initialize an error array.
    // Check for a first name:
    if (empty($_POST['first_name'])) {
        $errors[] = 'You forgot to enter your first name.';
    } else {
        $fn = trim($_POST['first_name']);
    // Check for a last name:
    if (empty($_POST['last_name'])) {
        $errors[] = 'You forgot to enter your last name.';
    } else {
        $ln = trim($_POST['last_name']);
    // Check for an email address:
    if (empty($_POST['email'])) {
        $errors[] = 'You forgot to enter your email address.';
    } else {
        $e = trim($_POST['email']);
    // Check for a password and match against the confirmed password:
    if (!empty($_POST['pass1'])) {
        if ($_POST['pass1'] != $_POST['pass2']) {
            $errors[] = 'Your password did not match the confirmed password.';
        } else {
            $p = trim($_POST['pass1']);
    } else {
        $errors[] = 'You forgot to enter your password.';
    if (empty($errors)) { // If everything's OK.
        // Register the user in the database...
        require_once('../mysqli_connect.php'); // Connect to the db.
        // Make the query:
        $q ="INSERT INTO user (first_name, last_name, email, pass, registration_date) VALUES ('$fn', '$ln', '$e', SHA1('$p'), NOW() )" ;
        $r = @mysqli_query ($dbc, $q); // Run the query.
        if ($r) { // If it ran OK.
            // Print a message:
            echo '<h1>Thank you!</h1>
        <p>You are now registered. In Chapter 11 you will actually be able to log in!</p><p><br /></p>';    
        } else { // If it did not run OK.
            // Public message:
            echo '<h1>System Error</h1>
            <p class="error">You could not be registered due to a system error. We apologize for any inconvenience.</p>';
            // Debugging message:
            echo '<p>' . mysqli_error($dbc) . '<br /><br />Query: ' . $q . '</p>';
        } // End of if ($r) IF.
        mysqli_close($dbc); // Close the database connection.
        // Include the footer and quit the script:
        include ('/includes/footer.html');
    } else { // Report the errors.
        echo '<h1>Error!</h1>
        <p class="error">The following error(s) occurred:<br />';
        foreach ($errors as $msg) { // Print each error.
            echo " - $msg<br />\n";
        echo '</p><p>Please try again.</p><p><br /></p>';
    } // End of if (empty($errors)) IF.

} // End of the main Submit conditional.
<link href="includes/style.css" rel="stylesheet" type="text/css" />

<form action="register.php" method="post">
    <p>First Name: <input type="text" name="first_name" size="15" maxlength="20" value="<?php if (isset($_POST['first_name'])) echo $_POST['first_name']; ?>" /></p>
    <p>Last Name: <input type="text" name="last_name" size="15" maxlength="20" value="<?php if (isset($_POST['last_name'])) echo $_POST['last_name']; ?>" /></p>
    <p>Email Address: <input type="text" name="email" size="20" maxlength="40" value="<?php if (isset($_POST['email'])) echo $_POST['email']; ?>"  /> </p>
    <p>Password: <input type="password" name="pass1" size="10" maxlength="20" /></p>
    <p>Confirm Password: <input type="password" name="pass2" size="10" maxlength="20" /></p>
    <p><input type="submit" name="submit" value="Register" /></p>
    <input type="hidden" name="submitted" value="TRUE" />
include ('/includes/footer.html');

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here it is

<?php $page_title='my dbase connect';

define ('DB_HOST','localhost');
define ('DB_USERNAME','root');
define ('DB_PASSWORD','');
define ('DB_NAME','sitename');
<title><?php echo $page_title ;?></title>

//conecting to database
        OR die('could not connect to server at this time: '.mysqli_connect_error());
$q='select first_name from user limit 3';
echo $result;


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  • 3 weeks later...

yeah i ve read the book. and so i thought maybe the error was not with my codes but either my server or database since the yours works for you perfectly so i started afresh deleting the old database, backedup my sites then uninstalled wamp and reinstalled it. Then i recreated the database and tried it this time with that same code and it worked. it was painstaking  but it was worth it. Thanks for everything.

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