Error: Class 'SplEnum' not found in PHP 7

Question

I have a project with PHP 7.3, under Windows 10. I use the PHP from Xampp.

I get the following error:

Fatal error: Uncaught Error: Class 'SplEnum' not found in [...]

for

class BanLevel extends SplEnum { ... }

It seems I am misunderstanding the docu:

This gives me the idea it should be included in my PHP artefact.

What am I missing?

jasie · Accepted Answer · 2021-05-12 06:43:07Z

It seems I checked the wrong documentation,
this is the right one:
https://www.php.net/manual/en/spl-types.installation.php

It clarifies:

This PECL extension is not bundled with PHP.

A DLL for this PECL extension is currently unavailable.

So I can't use SPLEnum under Windows, except I compile it into PHP.

UPDATE:

The spl-types.installation.php page does not exist on php.net anymore, but it is still available here:
https://php-legacy-docs.zend.com/manual/php5/en/spl-types.installation

php.net/manual/en/spl-types.installation.php is dead but archived here: web.archive.org/web/20201020032218/https://www.php.net/manual/…. Is there a new live link?
@dbc Thanks for the info! I can't find any replacement for that documentation anywhere, just the Romanian version is still online: php.net/manual/ro/spl-types.installation.php
It seems, the SPL Types package was replaced by the SPL package?

Machavity · Accepted Answer · 2025-10-23 20:33:01Z

2025 Update

SplEnum is no longer maintained, but you can still use it via a polyfill I wrote: aldemeery/enum-polyfill.

No need to install the old PECL extension—just run:

composer require aldemeery/enum-polyfill

Your existing SplEnum code will work immediately.