BackdropCMS 1.33.0 throws Call to undefined function cache() in system_list() error on PHP 7.1

[prbt2016]

Description of the bug

Hello @quicksketch ,

I was in the process of manual installation of BackdropCMS 1.33.0 downloaded from official website on Alma Linux 9.7 with PHP 7.1, MYSQL 5.7, Apache 2.4.

However, when i try to hit the installation URL i.e :

http://example.com/backdrop1330/core/install.php

Following error is thrown i.e :

Error: Call to undefined function cache() in system_list() (line 158 of /home/{{USER}}/public_html/backdrop1330/core/includes/module.inc).
Notice: Use of undefined constant MARK_NEW - assumed 'MARK_NEW' in backdrop_common_theme() (line 8219 of /home/{{USER}}/public_html/backdrop1330/core/includes/common.inc).

Following is the screenshot of the same :

Are the minimum PHP requirements changed or is it an issue?.

Since as per the docs

https://docs.backdropcms.org/documentation/system-requirements it is mentioned PHP 7.1 or above.

Kindly let me know.

Steps To Reproduce

To reproduce the behavior:

1. Try to install Backdrop with http://example.com/backdrop1330/core/install.php
2. Error: Call to undefined function cache() in system_list()

Actual behavior

Error thrown

Expected behavior

Backdrop installation should start

Additional information

Add any other information that could help, such as:

• Backdrop CMS version: 1.33.0
• Web server and its version: Apache 2.4
• PHP version: 7.1
• Database sever (MySQL or MariaDB?) and its version: MYSQL 5.7
• Operating System and its version: Alma Linux 9.7
• Browser(s) and their versions: Firefox 147.0.1 (64-bit)