Does anyone know of backward compatibity issues likely to be encountered on existing sites if I upgrade the server from PHP Version 4.4.7 to PHP Version 5.2.9 or version 5.3.x
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Php Upgrade - Backward Compatibilty
Started by
piskie
, Nov 27 2010 12:54 PM
2 replies to this topic
#2
Mooro
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HR 4
- Location:Loughborough, Leicestershire
Posted 28 November 2010 - 05:05 AM
I recently wrote a series of PHP applications to run on both 4 and 5, I built it in 5 and retro tested it on 4.
Date based stuff needs a timezone setting in 5 yet I found it puked on 4. There's loads of things it could fall over on.
In the end I went through every single function in the scripts and made a list of them with which versions they work on, I also built an installer to do the grunt work for the end user and that also performs a check for support of all the needed functions.
The best thing I can suggest is to get some PHP 5 web space and upload everything there to test rather than upgrade PHP and possibly have things suddenly stop working.
Good luck.
Date based stuff needs a timezone setting in 5 yet I found it puked on 4. There's loads of things it could fall over on.
In the end I went through every single function in the scripts and made a list of them with which versions they work on, I also built an installer to do the grunt work for the end user and that also performs a check for support of all the needed functions.
The best thing I can suggest is to get some PHP 5 web space and upload everything there to test rather than upgrade PHP and possibly have things suddenly stop working.
Good luck.
#3
piskie
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- Active Members
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HR 7
- Location:Cornwall
Posted 28 November 2010 - 09:48 AM
Thanks Mooro
Tis a very daunting thing to do with 40+ sites on the server. Also a mammoth task to exercise it all in a mock-up installation. A list of tripwires would have been ideal, but I thought it would be too much to hope for.
What I will probably end up doing is as you suggested. I will build a test site incorporating ALL PHP stuff that I can remember using and upload it to PHP 5.3.x space. Then hopefully, all will be revealed.
Tis a very daunting thing to do with 40+ sites on the server. Also a mammoth task to exercise it all in a mock-up installation. A list of tripwires would have been ideal, but I thought it would be too much to hope for.
What I will probably end up doing is as you suggested. I will build a test site incorporating ALL PHP stuff that I can remember using and upload it to PHP 5.3.x space. Then hopefully, all will be revealed.
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