Joomla & K2 // Custom field image URL only

<?php $imageFD=$this->item->extraFields->ALIAS->value; $srcFD=explode('src="', $imageFD); $srcFD=$srcFD[1]; $urlFD = strstr($srcFD, '"', true); ?>
Display only the URL of an image from a K2 custom field, to display it as a background instead of a img for example.

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