Split large Excel/Csv file to multiple files on PHP or Javascript

Question

I have excel(file.xls)/csv(file.csv) file that contains/will contain hundreds of thousands of entry, even millions I guess. Is it possible to split this one to multiple file

Answer 1

I think You can also use "split by file size":

$part = 1;

$maxSize = 50;//50 Mb

$fopen = fopen('filename.csv','r') or die ('ERROR');

while (($line = fgetcsv($fopen, 10000, ";")) !== FALSE) {

    $ftowrite = fopen("Part_$part.csv",'a');

    fputcsv($ftowrite,$line);

    clearstatcache();

    $size = filesize ( "review_p$part.csv" ) / 1000000;

    if ($size  > $maxSize) {

        fclose($ftowrite);

        $part++;

    }
}