One liner to get a CSV file into 2-dimentional array 
NB! Only works if "," is the separator!!!
NB! Does not work if CSV cells have line breaks in them!!!
<code php>
$csv = array_map('str_getcsv', file('data.csv'));
</code>


Work with each line in a CSV file:
<code php>
$handle = fopen("data_sample_5_sec.csv", "r");

$is_first_row_header = true;

for ($i = 0; $row = fgetcsv($handle, null, ";"); ++$i) {
    if ($is_first_row_header AND $i == 0) {
        $headers = $row;
        continue;
    }

    // Do something with $row array
    $row[''];
}
fclose($handle);
</code>