Cryto and PTA example functional code

Content

Hello, someone can help me with a functional code of encryption.

Im trying but the error page response with https://mysite.custhelp.com/app/loginerror/5, that means "The p_userid string was passed in, but it did not have a value. This pair is required for login."

Interesting if i decode that, the value of  p_userid  its passed correctly.

$dataEncode = "";
            
            try
            {
                 $ptaDataArray = array(
                 'p_name.first'=>'test',
                   'p_userid' =>  'test',
                   'p_email.addr' => '[email protected]' );
                   
                $ptaDataString = "";
                $ptaData = $ptaDataArray;
                
                foreach($ptaData as $key=>$value)
                {
                   $ptaDataString .= ($ptaDataString === "") ? '' : '&';
                   $ptaDataString .= "$key=$value";
               }

               
                $cipher = new Crypto\AES();
                $cipher->Mode->ID =2;