I'm struggling with integrating recaptcha in multipage form

Question

Background info: I have made a test form containing multiple pages. When recaptcha isn't intergrated I receive the info in my database. But when trying to integrate recaptcha (checkbox v2) it keeps failing and the info isn't sent to the database no more. I have tried to intergrate recaptcha on page2.php because it's the last page of the form the user has to fill in. I left my recaptcha keys in because it's just made as test.

Question: How can I make it work? How can I integrate recaptch in a correct way? Thanks!

The included pages are:

footer.php

header.php




  
    
    
    
    Multi-Page Form

index.php





  
    
      
        
          
            Questionnaire
             Beste user,
             Please fill in form A or B
            

            Form A
            

            Form B

page1.php


  
    
      
        
          
            Step 1/2

            
                  ";
                      email('Email', 'Email', 'Email', ' ');
                        echo "
";
                      text('Firstname', 'Firstname', 'Firstname', ' ');
                        echo "
";
                    ?>

page2.php


  
    
      
        
          
            Step 2/2
            

               'No ',
                        'Neutral ' => 'Neutral ',
                        'Yes ' => 'Yes ',
                        );

                    // choices for checkbox2
                        $options2 = array(
                        'Internet ' => 'Internet ',
                        'Friends ' => 'Friends ',
                        'Work ' => 'Work ',
                        'Other' => 'Other' ,
                        );

                    echo "
";
                  checkbox2( 'Info_media', 'Info_media', 'How do you know this?', $options2 );
                    echo "
"; 
                  text_non_required('Other', 'Other', 'Explain "Other"?', ' ');
                    echo "
";
                  checkbox( 'Question_1', 'Question_1', 'Do you agree with the answer?', $options );
                    echo "
";
                  text('Remark', 'Remark', 'Do you have remarks?', ' ');
            ?>

                

                
  
                

                      
                      
                      


                      
                      
                      
                      

                      
                      success == 1)
                                {
                                    header("Location: http://localhost/recaptcha_test/page3.php");
                                }
                                else
                                {
                                    echo "You are a robot.";
                                }
                            }
                          ?>

page3.php


  
    
      
        
          
            You are done.
            

            

              Thank you.

functions.php


  
    
    
  

  
    
    
  

  
    
    
  

  
    
     $title ) : ?>
      
        >
        
       
    
  

    
        
             $title) :
            ?>
            
               
                >
                
            
            
    
prepare("INSERT INTO test_database (Email, Firstname, Info_media, Other, Question_1, Remark) VALUES (?, ?, ?, ?, ?, ?)");

                    $stmt->bind_param("ssssss", $Email, $Firstname, $MCQ_0, $Other, $MCQ_1, $Remark);

                // Execute
                  $insert = $stmt->execute();

                // Einde sessie
                    session_destroy();
}

Evil_skunk · Accepted Answer

You probably misunderstood how recaptcha is working.

You integrate the recaptcha code (js + div) in your form
On the result page you check if the captcha check was sucessful (php)

Currently you are doing both things in page2.php. When this page is loading, it checks if recaptcha was successful, but the recaptcha was not even included and the user didn't had the opportunity to solve it yet :-)

So you should integrate it in page1 and check it in page2.

page1.php

Integrate the recaptcha div in your form

 
     
     ";
         email('Email', 'Email', 'Email', ' ');
         ...

ofc you can integrate the site key with php too (like you have done it on page2.php) or change the position inside the form

page2.php

Remove the recaptcha div from this page. The recaptcha success check should be somewhere in the beginning of this page. You should render the whole form only when $response->success == 1 succeed (see the attached code). This probably requires some additional restructuring of page2.php

success == 1){
        //render form from page 2
        ?>
        
            ...

As an alternative you could integrate recaptcha in page2.php and check the result in page3.php - it just depends in which step you want the recaptcha checkbox

I'm struggling with integrating recaptcha in multipage form

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