php5

Is php5 backwards compatable with php4 scripts ?

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Re: php5

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Re: php5

Mike harrell wrote:
> Is php5 backwards compatable with php4 scripts ?

We run a lot of PHP5 code that works fine on PHP4 as well, but there are
a number of areas that will give problems and may need you to make
changes to code.

http://uk2.php.net/manual/en/migration5.php is the starting point, but a
number of other annoying changes happened between 5.0, 5.1 and 5.2 so
you will need to check the additional migration notes for each of those.

( Do we need a proper Migrate PHP4 to PHP5.2 document? )

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Re: php5

On Tue, 02 Jan 2007 08:10:22 +0000, Lester Caine wrote:

> Mike harrell wrote:
>> Is php5 backwards compatable with php4 scripts ?
>
> We run a lot of PHP5 code that works fine on PHP4 as well, but there are
> a number of areas that will give problems and may need you to make
> changes to code.
>
> http://uk2.php.net/manual/en/migration5.php is the starting point, but a
> number of other annoying changes happened between 5.0, 5.1 and 5.2 so
> you will need to check the additional migration notes for each of those.
>
> ( Do we need a proper Migrate PHP4 to PHP5.2 document? )

I have found that each version of PHP is not backwards compatable with the
one before. 4.4 is not compatable with 4.3 etc.

Each release seems to have a set of little fiddles that make something
break. Going from 4.4 to 5.x makes just about every script we have break
- badly. It would be a major coding task requiring at least one dedicated
regression tester and 3 programmers for us to get up to stable at 5.x in
in a realistic space of time.

The COM stuff is totally different. Object handling in 5.x is complete
overkill, default reference passing behaviour has changed. Oh - and in
all the tests I have done, php 5.x is slower that php4 :-(

IMHO php 4.4.x is a really cool interpreter which is ideal for web tasks
of any size. PHP 5.x has lost its way, trying to compete head on with
asp.net and jsp. If I want jsp, I'll go get jsp. If I want asp.net - I
get psychotherapy!

"If it ain't busted, don't fix it!"

AJ

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Re: php5

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I have the scenario where on my local PC I have PHP 5.0, but on the web hosting server where my clients sites are held they have PHP 4.3.* (its version 4.*.*, I know that for sure).

Recently I had to perform a fix, so got the files off the server, and then loaded them up on my local PC (running 5.0). I had quite a few problems. For example, using didn't work, I had to change them to (is there something I can change in the PHP.ini file so that PHP 5.* can use
There are some other problems, which when i encounter them again, I will post here.

Tryst

-----Original Message-----
From: git@cubicalland.com
To: php-windows@lists.php.net
Sent: Tue, 2 Jan 2007 9.39AM
Subject: Re: [PHP-WIN] php5

On Tue, 02 Jan 2007 08:10:22 +0000, Lester Caine wrote:

> Mike harrell wrote:
>> Is php5 backwards compatable with php4 scripts ?
>
> We run a lot of PHP5 code that works fine on PHP4 as well, but there are
> a number of areas that will give problems and may need you to make
> changes to code.
>
> http://uk2.php.net/manual/en/migration5.php is the starting point, but a
> number of other annoying changes happened between 5.0, 5.1 and 5.2 so
> you will need to check the additional migration notes for each of those.
>
> ( Do we need a proper Migrate PHP4 to PHP5.2 document? )

I have found that each version of PHP is not backwards compatable with the
one before. 4.4 is not compatable with 4.3 etc.

Each release seems to have a set of little fiddles that make something
break. Going from 4.4 to 5.x makes just about every script we have break
- badly. It would be a major coding task requiring at least one dedicated
regression tester and 3 programmers for us to get up to stable at 5.x in
in a realistic space of time.

The COM stuff is totally different. Object handling in 5.x is complete
overkill, default reference passing behaviour has changed. Oh - and in
all the tests I have done, php 5.x is slower that php4 :-(

IMHO php 4.4.x is a really cool interpreter which is ideal for web tasks
of any size. PHP 5.x has lost its way, trying to compete head on with
asp.net and jsp. If I want jsp, I'll go get jsp. If I want asp.net - I
get psychotherapy!

"If it ain't busted, don't fix it!"

AJ

--
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www.cubicalland.com
Nerds-Central:
nerds-central.blogspot.com

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Re: php5

Hi Trystan!

> Recently I had to perform a fix, so got the files off the server, and then loaded them up on my local PC (running 5.0). I had quite a few problems. For example, using didn't work, I had to change them to (is there something I can change in the PHP.ini file so that PHP 5.* can use
Don't know, if it works for
short_open_tag = On

will allow using
Regards,
Stefan

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Re: php5

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Hi Stefan,

thats probably it :) Will give it a try when I get home.

Tryst

-----Original Message-----
From: sx03@freenet.de
To: php-windows@lists.php.net
Sent: Thu, 4 Jan 2007 2.30PM
Subject: Re: [PHP-WIN] php5

Hi Trystan!

> Recently I had to perform a fix, so got the files off the server, and then loaded them up on my local PC (running 5.0). I had quite a few problems. For example, using didn't work, I had to change them to (is there something I can change in the PHP.ini file so that PHP 5.* can use
Don't know, if it works for
short_open_tag = On

will allow using
Regards,
Stefan

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Re: php5

I ran into this problem a lot as well, then just decided to never use
short tags and have since had no problems.

The other thing I found helpful is to setup my development environment
on my local system to be the same (or as close to as possible) as what's
on my host's server. It took me some arguing to get a few specific PHP
settings from them (such as magic quotes enabled which I normally don't
use) but finally got them to provide me the details. Once I did this, my
development time was cut down significantly because I could do all my
development and testing locally and be able to upload to the server and
it would work. If you can do something similar, I highly recommend it.
Cheers.

Armando


trystano@aol.com wrote:
> Hi Stefan,
>
> thats probably it :) Will give it a try when I get home.
>
> Tryst
>
> -----Original Message-----
> From: sx03@freenet.de
> To: php-windows@lists.php.net
> Sent: Thu, 4 Jan 2007 2.30PM
> Subject: Re: [PHP-WIN] php5
>
> Hi Trystan!
>
> > Recently I had to perform a fix, so got the files off the server, and then loaded them up on my local PC (running 5.0). I had quite a few problems. For example, using didn't work, I had to change them to (is there something I can change in the PHP.ini file so that PHP 5.* can use >
> Don't know, if it works for >
> short_open_tag = On
>
> will allow using >
> Regards,
> Stefan
>
> -- PHP Windows Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
>

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