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PHP 5.3 has been released some time ago and the developers tried to keep the number of backwards compatibility breaks low. What issues did you find while testing/migrating your code with PHP 5.3?
I don't know about you, but I found all of these things I had to fix. :P
Migrating from PHP 5.2.x to PHP 5.3.x
Using CakePHP 1.2 it causes a lot of deprecated notices in debug mode.
Upgrading to latest CakePHP version fix it.
Beside the deprecated notices, I did not find any major issue.
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I have a legacy application which uses
Symfony 1_4
PHP 5.3
MySQL 5.6
Client is asking for an upgrade of all the tech stack to the latest.
Symfony 5
PHP 8
MySQL 8
How can I do this upgrade with minimum effort ?
A solution required without re-writing the whole application.
Upgraded application's security should be major feature
Upgrading from such an old version to the latest version is most likely never going to work.
I suggest rebuilding the application in Symfony 5 manually, it will probably save you a lot time and effort.
You can try to reuse as much business logic as you can.
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What is the easiest and fastest way to upgrade code from Laravel 5.3 to Laravel 7.3 or 8 ? Is there a tool which can do that for me ? How long does it take to do that?
Please help .
Regards
The easiest way is to follow the documentation by laravel, best way is to upgrade to the next version, for example in your situation upgrade to 5.4, when everything is working, and all composer packages are upgraded to the right version, then move on to 5.5 etc...
heres a place to start : https://laravel.com/docs/5.4/upgrade#upgrade-5.4.0
and you can just change version in top right corner to get upgrade for the next version.
keep in mind you gonna have to keep upgrading manually packages versions in your composer.json to the proper versions, so just analyze the error codes you gonna be getting.
if theres a tool to help with that, then I dont know about it, hopefully next person does.
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I was doing my client project. He told me he has Unlimited Cpanel purchased. so i just did my project on latest Laravel version. Now when i got his cpanel it has php version 5.4. What can i do now?
i was thinking about downgrading both laravel and php but will it support all features? Any help.
There are likely to be security vulnerabilities in that version of PHP and Laravel. The solution here is to get the client to upgrade his server infrastructure.
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I'm looking at some things in my cPanel and noticed that my server is using PHP 5.4. Should I change it to PHP 7.1? Is it a good idea to always use the latest version? Is there a big difference in performance between 5.4 and 7x?
You need to test for incompatibilities but PHP 7.1 is much faster, so barring some other reason not to, yes, you should.
if only for security reasons you should, but for resolving common bugs too and performance
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For example they are used many times in this file: https://github.com/EllisLab/CodeIgniter/blob/develop/system/database/drivers/mysql/mysql_driver.php
That's because that's the file for the MYSQL driver. They also offer a separate MySQLi driver.
Not everyone is going to be switching to PHP 5.5 for a while and there are plenty of legacy applications around. CodeIgniter is intended to remain compatible with older versions of PHP. If you want a more modern framework then there are plenty to choose from - Laravel is a good choice.