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From: Arno Welzel <usenet@arnowelzel.de>
Newsgroups: comp.lang.php
Subject: Re: php is retrocompatible ?
Date: Thu, 30 Jun 2022 10:37:53 +0200
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Angel:

> J.O. Aho kirjutas Esmaspäev, 20. august 2018 kl 06:46:44 UTC+2:
>> On 08/20/2018 05:32 AM, Gianni wrote: 
>>
>>> is it retrocompatible ? If I use old script from php5 in a php5.6 
>>> interpreter , will they work ?
>> In general php5 scripts will work on which ever php5.x version and may 
>> even work well in php7.x too. 
>>
>> Running php4 scripts on php5.x will also work as long as it don't use 
>> oop as there was a major change how objects worked between the two major 
>> versions. 
> 
> Really so with oop ? I didn't know that. I have to check it out myself to believe it.

<https://www.php.net/manual/en/language.oop5.php>


-- 
Arno Welzel
https://arnowelzel.de