Home » Php » php – Add a new line to a CSV file

php – Add a new line to a CSV file

Posted by: admin April 23, 2020 Leave a comment


If I have a CSV saved on a server, how can I use PHP to write a given line, say 142,fred,elephants to the bottom of it?

How to&Answers:

Open the CSV file for appending (fopen­Docs):

$handle = fopen("test.csv", "a");

Then add your line (fputcsv­Docs):

fputcsv($handle, $line); # $line is an array of string values here

Then close the handle (fclose­Docs):


I hope this is helpful.


You can use an object oriented interface class for a file – SplFileObject http://php.net/manual/en/splfileobject.fputcsv.php (PHP 5 >= 5.4.0)

$file = new SplFileObject('file.csv', 'a');
$file->fputcsv(array('aaa', 'bbb', 'ccc', 'dddd'));
$file = null;


This solution works for me:

$list = array

$file = fopen('contacts.csv','a');  // 'a' for append to file - created if doesn't exit

foreach ($list as $line)


Ref: https://www.w3schools.com/php/func_filesystem_fputcsv.asp


If you want each split file to retain the headers of the original; this is the modified version of hakre’s answer:

$inputFile = './users.csv'; // the source file to split
$outputFile = 'users_split';  // this will be appended with a number and .csv e.g. users_split1.csv

$splitSize = 10; // how many rows per split file you want 

$in = fopen($inputFile, 'r');
$headers = fgets($in); // get the headers of the original file for insert into split files 
// No need to touch below this line.. 
    $rowCount = 0; 
    $fileCount = 1;
    while (!feof($in)) {
        if (($rowCount % $splitSize) == 0) {
            if ($rowCount > 0) {
            $out = fopen($outputFile . $fileCount++ . '.csv', 'w');
            fputcsv($out, explode(',', $headers));
        $data = fgetcsv($in);
        if ($data)
            fputcsv($out, $data);