fputcsv
(PHP 5 >= 5.1.0)
fputcsv — Format line as CSV and write to file pointer
Description
fputcsv() formats a line (passed as a fields array) as CSV and write it (terminated by a newline) to the specified file handle.
Parameters
- handle
- 
      The file pointer must be valid, and must point to a file successfully opened by fopen() or fsockopen() (and not yet closed by fclose()). 
- fields
- 
      An array of values. 
- delimiter
- 
      The optional delimiter parameter sets the field delimiter (one character only). 
- enclosure
- 
      The optional enclosure parameter sets the field enclosure (one character only). 
Return Values
Returns the length of the written string or FALSE on failure.
Examples
Example #1 fputcsv() example
<?php
$list = array (
    array('aaa', 'bbb', 'ccc', 'dddd'),
    array('123', '456', '789'),
    array('"aaa"', '"bbb"')
);
$fp = fopen('file.csv', 'w');
foreach ($list as $fields) {
    fputcsv($fp, $fields);
}
fclose($fp);
?>
The above example will write the following to file.csv:
aaa,bbb,ccc,dddd 123,456,789 """aaa""","""bbb"""
Notes
Note: If PHP is not properly recognizing the line endings when reading files either on or created by a Macintosh computer, enabling the auto_detect_line_endings run-time configuration option may help resolve the problem.