1. Contributing User
    Devshed Newbie (0 - 499 posts)

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    Dec 2016
    Lakewood, WA
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    PHP Cache Comparison

    First Question:

    Are there any opinions here from knowledgeable people concerning these two PHP caching systems:

    A) Zend Opcache
    B) Alternative PHP Cache (APC)

    I see from The Wikipedia that APC was at one time considered for inclusion in the PHP package, but PHP/Zend has opted for Zend Opcache instead. The comparison chart at Wikipedia says that Zend Opcache does not do object / session caching, and that file caching is still under development. These are two areas that APC has functioning.


    Second question:

    With the only consideration being possibly compatibility, what is the NEWEST version of PHP that one might want to conservatively use for production applications?
    Last edited by Arty Zifferelli; May 13th, 2017 at 04:07 AM.
  2. #2
  3. Maddening Moderator
    Devshed Supreme Being (6500+ posts)

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    Mar 2007
    Washington, USA
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    Apples and oranges. Opcache and APCu (which is APC minus the bits that opcache does now) serve two separate purposes now: the former does script caching for performance and is mostly automatic, the latter does memory caching for explicit use by developers.

    7.1 is the latest series and has a few releases out so it's stable. That is what you should be using. 5.6 is still receiving security fixes but is otherwise dead so don't use it for new code.

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