Redirect help and SSL Help

[phpfan28]

I having trouble with my re-direct code on my php registration form. The form does submit data to the database but I'm getting the following error.

 

"Warning: Cannot modify header information - headers already sent by (output started at /homepages/25/d232402382/htdocs/testencourage/registration.php:15) in /homepages/25/d232402382/htdocs/testencourage/registration.php on line 87"

 

I would like the form goes to the thanks.php after submitting the data but its not doing its job. Here is the code.

 

<?php 

if ($_SERVER['HTTPS']) { 
header('location: https://www.fakewebsite.com'); 
} 

the regular html syntax <title>, site  navigation, etc...

?> 


<?php 

if (isset($_POST['submitted'])){ 
     
$fields = array( 
    'email', 
    'state', 
    'district', 
    'gender', 
    'age', 
    'profession', 

); 

if (safe($_POST['survey']=="Yes")){ 
    $survey = "Yes"; 
} 
else{ 
    $survey = "No"; 
} 
     

foreach($fields as $fieldName) { 
    if(isset($_POST[$fieldName]) and safe(trim(stripslashes($_POST[$fieldName]))) !==''){ 
        $$fieldName = safe(trim(stripslashes($_POST[$fieldName]))); 
    }else { 
         
                $errors[] = "Please enter your". $fieldName .""; //code to validate fields 
    } 
} 
if(!isset($errors)){ 
     
require_once('Connections/encourage.php'); 

$query = "INSERT INTO participants (email, state, district, gender, age, profession, survey, registration_date)
VALUES ('$email', '$state', '$district', '$gender', '$age', '$profession','$survey', NOW())"; //databasse connection 
    
    $result = mysql_query ($query);      



if ($result){ 
     
    $url = 'http://'. $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']); 
     
    if ((substr($url, -1) == '/') || (substr($url, -1) == '\\')) { 
        $url = substr ($url, 0 -1); 
    } 
     
    $url .= '/thanks.php'; 
    header("Location: $url");// this is line 87 
    exit(); 
     
    }else{ 
     
    echo '<h1 id="mainhead">System Error</hl> 
    <p>Your registration could not be completed due to a system error We apologize for any incovience</p>';//gives system error 
    echo 'p' . mysql_error(). '<br /><br />Query: ' . $query . '</p>'; 
    exit(); 
     
    } 
    mysql_close(); 
     
    } else { 
         
        echo '<h1 id="mainhead">Error!</h1> 
        <p class="error">The following error(s) occurred:<br />'; 
        foreach($errors as $msg) { 
            echo " - $msg<br/>\n"; 
        } 
        echo '</p><p>Please try again.</p><p><br/></p>'; 
    } 

} 

function safe($string) 
    { 
        $pattern = "/\r|\n|\%0a|\%0d|Content\-Type:|bcc:|to:|cc:/i"; 
        return preg_replace($pattern, '', $string); 
    } 
     
?>

Also I'm going to set up my ssl on the server so I'm planning to use that https redirect syntax but since I'm very new at this, am I missing something. Your help will be greatly appreciated, thanks!

[freelance84]

 

Basically you cannot echo anything before using the header function. You cannot send one header out to the client in the form of echo, then sent out a header to relocate in between. You can relocate, or, echo... that is what the error is telling you.

 

Also, after header function it is always best to exit(); your php scripts... prevents anything from running any further causing unforeseen bugs.

 

[freelance84]

http://symfony.com/doc/current/book/http_fundamentals.html

 

This starter on the symfony framework has a pretty decent illustration on the concept of headers

 

[phpfan28]

Okay, since I'm still new to php, could you provide me where the exact spot I should put the header() function, that will help me a lot since I'm a little lost. Thanks!