Using PHP fputcsv() to Write CSV Files

The fputcsv() function formats a single row—provided as an array—to CSV format and writes it to a file handle opened with fopen(). It is a convenient way to generate CSV files directly from PHP.

Parameters : handle: a valid file pointer obtained from fopen() or fsockopen() that has not been closed. fields: an array containing the values for the CSV row. delimiter (optional): a single‑character string that separates fields (default is a comma). enclosure (optional): a single‑character string used to enclose fields (default is a double‑quote).

The function returns the length of the written string on success, or FALSE on failure.

Example :

<?php
$list = array(
    array('aaa','bbb','ccc','dddd'),
    array('123','456','789')
);
$fp = fopen('file.csv','w');
foreach ($list as $fields) {
    fputcsv($fp, $fields);
}
fclose($fp);
?>

This script creates a CSV file file.csv containing the following output:

aaa,bbb,ccc,dddd
123,456,789
"","aaa","bbb"