Passing property to chunk and using it as variable name

for($i = 1;$i < 5; $i++){
   $images = $modx->resource->get('Images'.$i);

   $decoded = json_decode($images[1]);
   $imageLength = count($decoded);
   if($imageLength > 0){
   $properties = array('imageKey' => 'Images'.$i, 'contentKey' => 'Content'.$i);
   switch($imageLength){
      case ($imageLength < 2):
      $output = $modx->getChunk('SingleSection',$properties);
         return $output;
         break;
      case ($imageLength <= 6):
         $output = $modx->getChunk('SliderSection',$properties);
         return $output;
      break;
      default:
         $output = $modx->getChunk('GallerySection',$properties);
         return $output;
      break;
   }
   }
}

<div class="imageSlider">
      <div class="imageStore store">
	[[!getImageList? 
		&tvname=`[[+imageKey]]`
		&tpl=`@CODE:<div class="cell" style="background:url([[+image]]) no-repeat center center"></div>
	`]]
									
	</div>
</div>

<?php

for ($i = 1; $i < 5; $i++) {
    $images = $modx->resource->getTVValue('Images' . $i);

    $decoded = json_decode($images[1]);
    $imageLength = count($decoded);
    if ($imageLength > 0) {

        $gil_properties = array();
        $gil_properties['tvname'] = 'Images' . $i;

        switch ($imageLength) {
            case ($imageLength < 2):
                $gil_properties['tpl'] = '@CODE:<div class="cell" style="background:url([[+image]]) no-repeat center center"></div>';
                $gil_output = $modx->runSnippet('getImageList', $gil_properties);

                $properties = array('gil_output' => $gil_output, 'content' => $modx->resource->getTVValue('Content' . $i));
                $output = $modx->getChunk('SingleSection', $properties);
                return $output;
                break;
            case ($imageLength <= 6):
                //different tpl goes here:
                $gil_properties['tpl'] = '@CODE:<div class="cell" style="background:url([[+image]]) no-repeat center center"></div>';
                $gil_output = $modx->runSnippet('getImageList', $gil_properties);

                $properties = array('gil_output' => $gil_output, 'content' => $modx->resource->getTVValue('Content' . $i));
                $output = $modx->getChunk('SliderSection', $properties);
                return $output;
                break;
            default:
                //different tpl goes here:
                $gil_properties['tpl'] = '@CODE:<div class="cell" style="background:url([[+image]]) no-repeat center center"></div>';
                $gil_output = $modx->runSnippet('getImageList', $gil_properties);

                $properties = array('gil_output' => $gil_output, 'content' => $modx->resource->getTVValue('Content' . $i));
                $output = $modx->getChunk('GallerySection', $properties);
                return $output;
                break;
        }
    }
}

<div class="imageSlider">
      <div class="imageStore store">
      [[+gil_output]]  
    </div>
    [[+content]]
</div>

for ($i = 1; $i < 5; $i++) {
    $images = $modx->resource->getTVValue('Images' . $i);

    $decoded = json_decode($images[1]);
    $imageLength = count($decoded);
    $type = '';
        
    if ($imageLength > 0) {
        switch ($imageLength) {
            case ($imageLength < 2):
                $type = 'SingleSection';
                break;
            case ($imageLength <= 6):
                $type = 'SliderSection';
                break;
            default:
                $type = 'GallerySection';
                break;
        }
        
        $gil_properties = array();
        $gil_properties['tvname'] = 'Images' . $i;
        $gil_properties['tpl'] = $type . 'Tpl';
        $gil_output = $modx->runSnippet('getImageList', $gil_properties);

        $properties = array('gil_output' => $gil_output, 'content' => $modx->resource->getTVValue('Content' . $i));
        $output = $modx->getChunk($type, $properties);
        return $output;

    }
}