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To: Nikita Popov <nikita.ppv@gmail.com>
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Subject: Re: [PHP-DEV] [RFC] Integrating Zend Optimizer+ into the PHP distribution
From: rasmus@lerdorf.com (Rasmus Lerdorf)

On 01/29/2013 06:13 AM, Nikita Popov wrote:

> I'm not sure I fully understand this. The RFC claims that Optimizer+ is
> already *now* fully compatible with PHP 5.5. And that it was also
> compatible when PHP 5.4 was released. So they lack of a working and free
> opcode cache clearly wasn't the issue. My guess is rather that the lack
> of APC support (as in specifically APC and not just some opcode cache)
> was an issue. Either because people didn't know about alternatives (APC
> after all is the go-to opcode cache), didn't want to try them or had
> software tightly integrated with APC (and in particular its user cache).

Closed source isn't an option for many sites.