How to write data to excel file in PHP?

Question

PHP

There are 3 variables:
$id = $names_new[$j][0];
$old = $names_new[$j][1];
$new = $names_old[$i][1];
You need to write them to the Excel file line by line:
A BC
$id $old $new
Tried like this:

$id = $names_new[$j][0];
$old = $names_new[$j][1];
$new = $names_old[$i][1];
$tofile = $id  . ';' . $old . ';' . $new . "\n";
$bom = "\xEF\xBB\xBF";
@file_put_contents($fileall, $bom . $tofile . file_get_contents($fileall));

Does not work. Can someone tell me?

Answer 1

$tofile = $id . ';' . $old . ';' . $new . "\n";
This is CSV, not XLS(X). To work with XLS(X) you can use PhpSpreadsheet