convert array to csv string

Solution 1:

<?php
$out = fopen('php://output', 'w');
fputcsv($out, array('this','is some', 'csv "stuff", you know.'));
fclose($out);
?>

Solution 2:

$csv = fopen('php://temp/maxmemory:'. (5*1024*1024), 'r+');
fputcsv($csv, array('blah','blah'));
rewind($csv);

// put it all in a variable
$output = stream_get_contents($csv);
fclose($csv);

Solution 3:

function outputCSV($data) {
  $outstream = fopen("php://output", 'w');
  function __outputCSV(&$vals, $key, $filehandler) {
    fputcsv($filehandler, $vals, ';', '"');
  }
  array_walk($data, '__outputCSV', $outstream);
  fclose($outstream);
}

Reference:

http://stackoverflow.com/questions/4692709/how-to-make-fputcsv-echo-the-data

http://php.net/manual/en/wrappers.php.php