the $escape parameter must be provided as its default value will change

Description

The $escape parameter of various PHP functions that deal with CSV files will change in PHP 9.0. The current default value is \ (backslash), and it will be changed to an empty string. To be ready for that version, it is recommended to explicitely set that value, so as to preserve the previous behavior, with a \, or move to the new one, with an empty string.

Example

<?php

$fp = fopen(export.csv, w);
fputcsv($data);

?>

Solutions

  • Add the 5th parameter in the fputcsv() or fgetcsv() calls.

  • Add the named parameter escape in the calls.

  • Test your application with escape set to empty string, and PHP 8.4+.

See Also