opcache is a zend_extension

Affected Puppet, Ruby, OS and module versions/distributions

• Puppet: 5.5.10
• Ruby: 2.5.5p157
• Distribution: Debian 10.9
• Module version: v7.1.0

How to reproduce (e.g Puppet code you use)

  class { 'php':
    ensure       => present,
  }

What are you seeing

Debian appears to install php7.3-opcache by default, with a correct 10-opcache.ini containing a "zend_extension" line.

This module appears to notice an opcache extension and adds an "extension" line to that ini file.

This causes an error on every PHP startup.

What behaviour did you expect instead

To understand that it's a zend extension (or to not touch that file at all)

Output log

# php
PHP Warning:  PHP Startup: Invalid library (appears to be a Zend Extension, try loading using zend_extension=opcache.so from php.ini) in Unknown on line 0
^C
# cat /etc/php/7.3/cli/conf.d/10-opcache.ini
; configuration for php opcache module
; priority=10
zend_extension=opcache.so
extension = opcache.so

Any additional information you'd like to impart

Reproduce with the shown Puppet class on Debian 10.9 and inspect how the module handles the existing /etc/php/7.3/cli/conf.d/10-opcache.ini file. The fix is complete when the configuration retains the zend_extension=opcache.so line without adding extension = opcache.so, and PHP starts without the warning.