[Resolved] How to validate number field (10 digits, starting with '06') using preg_match

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[Fred Konings]

Tell us what you are trying to do?
I am trying to validate a post form field 'guest_phone' to have 10 digits and starting with '06'

Is there any documentation that you are following?
https://toolset.com/documentation/programmer-reference/cred-api/#cred_form_validate

Is there a similar example that we can see?

I am using the function below:

function email_domain_validation($email){
  if (!preg_match('/^([a-z0-9\+\_\-\.]+)@([a-z0-9\+\_\-\.]{2,})(\.[a-z]{2,4})$/i', $email)) return false;
  
  $domains = array('mail.ru','op.ru','mail.ro','op.ro','mail.pl','op.pl');
  list(, $email_domain) = explode('@', $email, 2);
  return in_array($email_domain, $domains);
}

add_filter('cred_form_validate','func_email_validation',10,2);
function func_email_validation($error_fields, $form_data){
    list($fields,$errors)=$error_fields;
     
     if ($form_data['id']==791){ // id of email post-form
   
           $is_unvalid_email_domain =  email_domain_validation($_POST['wpcf-guest_email']);
           if($is_unvalid_email_domain)  {
                $errors['wpcf-guest_email']='Dit e-mailadres is niet toegestaan.';
           }
           //check hidden_field value
           if ($fields['wpcf-hidden_field']['value']!='') {
               //set error message for hidden_field
               $errors['hidden_field']='We hebben je gevangen, jij stiekemerd!';
           }
           // check guest_phone has 10 digits and starting with 06
           if ($fields['wpcf-guest_phone']['value']!=preg_match('/^(?:06)\d{10}$') ) {
               //set error message for guest_phone
               $errors['guest_phone']='Geef een correct mobiel nummer';
           }  
     }
    return array($fields,$errors);
}

I would like to get assistance in making this part below with 'preg_match' work.

           // check guest_phone has 10 digits and starting with 06
           if ($fields['wpcf-guest_phone']['value']!=preg_match('/^(?:06)\d{10}$') ) {
               //set error message for guest_phone
               $errors['guest_phone']='Geef een correct mobiel nummer';
           } 

[Minesh]

Hello. Thank you for contacting the Toolset support.

You should try to use the following code:

$pattern = "/^(06)[0-9]{8}$/";  
$is_guest_validate = preg_match($pattern, $fields['wpcf-guest_phone']['value']);

if (!$is_guest_validate) {
    //set error message for guest_phone
    $errors['guest_phone']='Geef een correct mobiel nummer';
}