csvdal.php

<?php
class DataLayer {
  	public $header;
	public $data;	
	public function __construct ($header, $data) {
		$this->header = $header;
		$this->data = $data;
	}
	public function get ($key) {
		return $this->data[array_search($key, $this->header)];
	}
}

$header = array('name', 'phone', 'id');
$data = array('john', '11', '2');

$csv = new DataLayer($header, $data);
echo $csv->get('name');
?>