<?php // can't use $this, so replacing with $ths for demonstrative purposes $ths = (object)[ 'item' => (object)[ 'tags' => (object)[ 'itemTags' => [ (object)['alias' => 'one'], (object)['alias' => 'two'], (object)['alias' => 'three'], ] ] ] ]; echo '<div class="realizace_box ' . implode(' ', array_column($ths->item->tags->itemTags, 'alias')) . '">';
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