[PHP]: splittare un campo text in pezzi da 255 caratteri (per Excel)

[andr3a]

alternativa

if(!function_exists('str_split')) {
	// Andrea Giammarchi [http://www.devpro.it/php4_id_118.html] 2006/05/23
	function str_split($str, $len = 1) {
		$result = array();
		preg_replace("/([^\a]{1,{$len}})/e", 'array_push($result, "\\1");', $str);
		return $result;
	}
}