How write at a end of file without deleting

[Asabbagh404]

Hi,

I'm trying to write at the end of a file without deleting the last one . Is it possible ?

Thank you

[ellumilel]

Hi, What do you mean by deleting the last one ?

[Asabbagh404]

Is it possible to add content to an existing file ? Because when I use the function "writeToFile", it crush my file with the same name :

`<?php
require_once DIR . '/vendor/autoload.php';

$header = [
'nom' => 'string',
'prenom' => 'string',
'telephone' => 'string',
'email' => 'string',
];

$wExcel = new Ellumilel\ExcelWriter();
$wExcel->writeSheetHeader('Sheet1', $header);
$wExcel->setAuthor('Your name here');
$wExcel->writeSheetRow('Sheet1', [
$_POST['firstname'],
$_POST['lastname'],
$_POST['tel'],
$_POST['mail'],

]);

$wExcel->writeToFile("example.xlsx");
header("location:". $_SERVER['HTTP_REFERER']);
`