[Solved] eFormEventFunctions makes page go blank on form submit

[[eFormEventFunctions]]

[!eForm?   &eFormOnMailSent=`dothistest`  &vericode=`1` &formid=`feedbackForm` &subject=`Website contact submission` &to=`[email protected]`  &report=`eFeedbackReport` &thankyou=`eFeedbackThanks` &from=`[email protected]` &fromname=`[(site_name)]`  &tpl=`tpl_contactform` !]

<p>[+validationmessage+]</p>

<form method="post" action="[~[*id*]~]">
    <input type="hidden" name="formid" value="feedbackForm" />

    <p><label for="Name">Your Name *</label><br />
    <input type="text" id="Name" name="Name" maxlength="60" eform="Your Name::1" /></p>

     <p>
    Please enter the anti spam code below:<br />
    <img src="[+verimageurl+]" alt="verification code" border="1"/>
    </p>

    <p>
<label for="vericode">code</label>
<input type="text" name="vericode" size="20" />
    </p>

    <p><input type="submit" name="submit" value="Send" /></p>

</form>

<?php
// eFormEventFunctions snippet
function dothistest (&$fields){
global $modx;
global $templates;
die("I'm inside the :" . __FUNCTION__);
} // end function
?>

<?php
// eFormEventFunctions snippet
function dothistest (&$fields){
   global $modx;
   //do whatever you need to do....
   //RETURN TRUE! Very important!
   return true;
} // end function
?>

<?php
//functions for eForm events
function createJobNumber( &$fields ){
global $modx;
$jobNum = '';
		foreach{ explode(' ',$fields['cognome'],3) as $nm)
			$jobNum .= strtoupper(substr($nm,0,1));
		$jobNum .= date('ymdHi');
		//set extra value in fields array
		$fields['jobNumber']= $jobNum;
		//return succes
		return true;

	//rest of function code as above
}
//return empty string
return '';
?>

foreach{ explode(' ',$fields['cognome'],3) as $nm)

[[eformfunctions]]
[!eForm? &formid=`ContactForm` &subject=`[(site_name)] Newsletter Sign-up` &to=`[email protected]` &from=`[email protected]` &tpl=`xContactForm` &report=`xContactFormReport` &noemail=`1` &thankyou=`xContactFormReport` &protectSubmit=`0`  &eFormOnValidate=`testfunction` !]

// Snippet: eformfunctions

function testfunction() 
{
return true;
}