//cell separator, row separator, value enclosure
$csv = new CSV(';', "\r\n", '"');

//parse the string content
$csv->setContent(file_get_contents('data.csv'));

//returns an array with the CSV data
print_r($csv->getArray());

$csv = new CSV(';', "\r\n", '"');
//sets up the content through an array
$csv->setArray(
	array(
		array('col"una1', "colu\r\nna2"),
		array('col;una3', 'coluna4')
	)
);
//retorns string with the CSV representation
print $csv->getContent();

<?php
//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com
class CSV{
	var $cellDelimiter;
	var $valueEnclosure;
	var $rowDelimiter;

	function CSV($cellDelimiter, $rowDelimiter, $valueEnclosure){
		$this->cellDelimiter = $cellDelimiter;
		$this->valueEnclosure = $valueEnclosure;
		$this->rowDelimiter = $rowDelimiter;
		$this->o = array();
	}
	function getArray(){
		return $this->o;
	}
	function setArray($o){
		$this->o = $o;
	}
	function getContent(){
		if(!(($bl = strlen($b = $this->rowDelimiter)) && ($dl = strlen($d = $this->cellDelimiter)) && ($ql = strlen($q = $this->valueEnclosure))))
			return '';
		for($o = $this->o, $i = -1; ++$i < count($o);){
			for($e = 0, $j = -1; ++$j < count($o[$i]);)
				(($e = strpos($o[$i][$j], $q) !== false) || strpos($o[$i][$j], $b) !== false || strpos($o[$i][$j], $d) !== false)
				&& $o[$i][$j] = $q . ($e ? str_replace($q, $q . $q, $o[$i][$j]) : $o[$i][$j]) . $q;
			$o[$i] = implode($d, $o[$i]);
		}
		return implode($b, $o);
	}
	function setContent($s){
		$this->o = array();
		if(!strlen($s))
			return true;
		if(!(($bl = strlen($b = $this->rowDelimiter)) && ($dl = strlen($d = $this->cellDelimiter)) && ($ql = strlen($q = $this->valueEnclosure))))
			return false;
		for($o = array(array('')), $this->o = &$o, $e = $r = $c = 0, $i = -1, $l = strlen($s); ++$i < $l;){
			if(!$e && substr($s, $i, $bl) == $b){
				$o[++$r][$c = 0] = '';
				$i += $bl - 1;
			}
			elseif(substr($s, $i, $ql) == $q){
				$e ? (substr($s, $i + $ql, $ql) == $q ?
				$o[$r][$c] .= substr($s, $i += $ql, $ql) : $e = 0)
				: (strlen($o[$r][$c]) == 0 ? $e = 1 : $o[$r][$c] .= substr($s, $i, $ql));
				$i += $ql - 1;
			}
			elseif(!$e && substr($s, $i, $dl) == $d){
				$o[$r][++$c] = '';
				$i += $dl - 1;
			}
			else
				$o[$r][$c] .= $s[$i];
		}
		return true;
	}
}
?>