$pCode = '<span>Something</span>';
	$middleTag = ceil(substr_count($content, '</p>') / 2);
	$words = explode('</p>', $content);
	$content = '';
	for ($i = 0; $i < count($words); $i++) {
		$content .= $words[$i] . '</p>';
		if ($i == $middleTag) {
			$content .= $pCode;
		}
	}