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Re: The Future of PHP [message #171018 is a reply to message #171016] Wed, 15 December 2010 03:17 Go to previous messageGo to previous message
Jerry Stuckle is currently offline  Jerry Stuckle
Messages: 2598
Registered: September 2010
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On 12/14/2010 9:51 PM, Adam Harvey wrote:
> On Mon, 13 Dec 2010 23:57:28 -0500, Jerry Stuckle wrote:
>> On 12/13/2010 10:42 PM, Adam Harvey wrote:
>>> The Zend Engine is the core runtime engine that parses and executes
>>> your PHP code. As noted, the copyright to that is owned by Zend
>>> Technologies, but as with the rest of PHP, it's made available under a
>>> liberal open source licence.
>>>
>>> In short, there's no real way PHP as a whole could be bought by a
>>> company à la Java, because it's not owned by a singular entity as it
>>> is, and all of the components are licensed under an Apache-like
>>> licence.
>>
>> No, but without an engine, PHP is pretty worthless.
>
> Absolutely, but it's not an actual problem, because:
>
>> Of course, if someone ever bought out Zend and terminated everyone's PHP
>> license, a bunch of programmers could spend the next 3-4 years putting
>> together another engine and getting it to run. But by then PHP would be
>> dead anyway.
>
> The Zend Engine License (available in Zend/LICENSE within the PHP source
> tree) explicitly deals with this problem. To quote section 4 of said
> licence:
>
> 4. Zend Technologies Ltd. may publish revised and/or new versions
> of the license from time to time. Each version will be given a
> distinguishing version number.
> Once covered code has been published under a particular version
> of the license, you may always continue to use it under the
> terms of that version. You may also choose to use such covered
> code under the terms of any subsequent version of the license
> published by Zend Technologies Ltd. No one other than Zend
> Technologies Ltd. has the right to modify the terms applicable
> to covered code created under this License.
>
> The important bit is that covered code can always be used under the
> version of the Zend Engine License. Even in the incredibly unlikely
> situation that Zend were to get bought out and development of the Zend
> Engine was closed, the most recent version of the Zend Engine included in
> the PHP source tree would remain open source, and I dare say that
> development would continue on that open source version of the Zend Engine
> regardless: much of the work that occurs on the engine comes from
> developers who aren't employed by Zend anyway.
>
> tl;dr: Can't happen. Relax.
>
> Adam

The important point here is:

"No one other than Zend Technologies Ltd. has the right to modify the
terms applicable to covered code created under this License.

If someone buys Zend out, they are free to modify any and all licenses.
That includes revoking those same licenses.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================

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