Custom Renderer for migx (not migxdb) - output is json?

[[getmigxurl? &val=`[[+links]]`]]

<?php
$val = $modx->getOption('val', $scriptProperties, "");
/* //the following json is the field content if I do not use a renderer.
$val = '[{"MIGX_id":"1","url":"asdasd","country":"all","afid":"Standard","releasetitle":"","cnames_ro":"","_this.value":"Standard","cnames":"Überall/Fallback","afidrendered_ro":"","afidrendered":"Standard"},{"MIGX_id":"2","url":"asdasd","country":"DE","afid":"Standard","releasetitle":"","cnames_ro":"","_this.value":"Standard","cnames":"Deutschland","afidrendered_ro":"","afidrendered":"Standard"},{"MIGX_id":"3","url":"asdasda","country":"DE-AT-CH","afid":"Standard","releasetitle":"","cnames_ro":"","_this.value":"","cnames":"GSA","afidrendered_ro":"","afidrendered":"Standard"}]';
*/



$array = json_decode($val, true);
if(!isset($array)) return;

$size=0;
$skey = "url";
$svalue = "Kein Link gefunden.";

$size = count(array_filter($array, function($element){
    return $element['url'] != 'Kein Link gefunden.';
}));

$size = $size-1;

$outputtxt = '+ weitere '.$size.' Links';

echo $outputtxt;