Calculation instead of captcha

Hi,

I need you help.
My customer want's as security function in his form a calculation instead of the captchas.
For example the user have to enter the result of 4+5. When he enters the right result the form will be OK, otherwise he will get a message - "Wrong result ...".

Is there a function to integrate something like that?

If there isn't any function, I thought about including a simple textfield with a message: "Solve this calculation: 7+3!...". The user have to write the result in the textfield. When the input is right, the form will be OK, when not - he will get an error message. But how can I check this field for the right input?

I hofe you can help me ...

Hi fomlackner,

There's nothing built in but it's not hard to create code to do this using a Custom Code element. Best to use ServerSide validation to check the result.

Bob

Hi, thanks for the answer.
Now I'm near to the solution I think.

I have entered the following code into "Custom Server Side Validation":

<?php
if ( $form->data['calculation'] == '11' ) {
$message = right;
} else {
$error_count++;
}
if ( $error_count ) {
  return false;
}
?>

But this goes totally wrong - chrono forms does nothing. Not even the onfail thing.
Why that?

Hi fomlacker,

I'm not quite sure what is happening to the $error_count here; it may need setting to 0 to start with.

Please try:

<?php
if ( $form->data['calculation'] != '11' ) {
  $form->validation_errors['calculation'] = "Please try again.";
  return false;
}
?>

Bob

.

Hi Bob,

thx ... now it works! Perfect!

Hey,

In my form, I have added the following code to check that the field_id = "comment" is less 1000 characters. However, when I add content with greater than 1000 chars, the Custom Server Side Validation is not showing an error and the email is still sent:

<?php
if (strlen($form->data['comment']) > 1000) {
    $form->validation_errors['comment'] = "Your message is too long. If this is intentional, please send management an attachment.";
    $error_count++;
    return false;

}
?>

My email actions in the onSubmit area are in the following order:
Check Captcha
Upload Files
Custom Server Side Validation


Using J1.6.6 and Chronoforms_J1.6_V4_RC1.9

Hi cubefree,

If you haven't got one there please drag an Event Loop action into the On Fail box of the SeverSide Validation action. You might also move the action up before the File Loader.

Bob