Issue with fputcsv() and the default parameter values in PHP 8.4

[K2ouMais]

Description

The following code:

<?php

$data = [
    "test1",
    "test2",
    "test3",
    "test4",
    "test5",
];

$handle = fopen('php://memory', 'w+');

// Accepting the default values doesnt work
fputcsv($handle, $data);

// Providing all default parameter values work
fputcsv($handle, $data, ",", "\"", "\\", "\n");

fclose($handle);

https://3v4l.org/aRvTD#v8.4.1

Resulted in this output:

Deprecated: fputcsv(): the $escape parameter must be provided as its default value will change in /in/aRvTD on line 14

But I expected this output instead:

It should write without any problem

PHP Version

PHP 8.4.1

Operating System

No response

[Girgias]

This is expected behaviour and is part of the migration guide, as the current default value is broken, and it was decided that warning users was better than just changing the default value of it in PHP 9.

Yes this means the $escape parameter is now required, use named arguments to pass it explicitly.