Question

Migrating PHP4 scripts to PHP5

Asked by: debbieau1

Hi

I have a lot of php4 scripts, and we are just upgrading to php5.

I have read there that you can turn on compatibility with php4 in the php.ini.

Can you tell me if this means the scripts are compatible with both php4 and php5, or just php4, and are there any downsides in using this?

Thank you

Debbie

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2005-07-15 at 16:57:01ID21493642
Tags

php5

,

php4

,

compatibility

,

migrating

Topic

PHP Scripting Language

Participating Experts
4
Points
250
Comments
19

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. Migrating from PHP4 to PHP5
    Hi, Is there any benefit to migrate from PHP4 to PHP5? Scenario: We are running a site built with PHP4 (structure programming, no OOP at all) and MySQL 4. It is serving 50,000 hits per day with no problem but likely to increase upto 3 times within 2 months. In this...
  2. What are the differences between PHP4 and PHP5?
    What are the differences between PHP4 and PHP5?
  3. php4 and php5 on the same server running IIS
    I am setting up a server with Helm and it supports running both php4 and php5 on IIS but when I install the software it drops an ini file for both version 4 and version 5 into the c:\windows directory. So the question is... can I setup php4 to use one ini file and php5 to ...
  4. Migrating PHP4 to PHP5
    Hi, I was wondering what are some other differences to php5 vs php4 besides the object orientedness of php5. I know that was the main staple of php5, but I'm wanting to migrate some php4 applications and I'm wondering if any function names have changed etc...
  5. php4 to php5
    how to migrated php4 to php5 on plesk 8

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: DanFGPosted on 2005-07-15 at 17:09:05ID: 14455780

 

by: Diablo84Posted on 2005-07-15 at 17:15:28ID: 14455806

hi Debbie,

Scripts that were written for PHP4 should work fine for PHP5... the only differences that you should pay attention to are listed here:

http://us2.php.net/manual/en/migration5.incompatible.php

All that comes to mind besides this, is old scripts or poorly written code which depends on register globals being turned on. Register globals were actually turned off by default as of php version 4.2.0 because of misuse of the feature which lead to insecure code. You can read more on the matter here:

http://us3.php.net/register_globals

You can turn them on by changing the register_globals setting in the php.ini file (and restarting your web server) but you should really update your scripts if needed.

eg: if you have a form input (with the post method)

<input type="text" name="myinput">

reference its value using $_POST['myinput'] rather then $myinput

or if the form uses the get method (or when using the query string, page.php?myinput=somevalue)

use: $_GET['myinput'] or $_REQUEST['myinput'].

Diablo84

 

by: DanFGPosted on 2005-07-15 at 17:21:52ID: 14455828

Debbie, to answer your question, there's an option to enable OOP-wise compatibility mode, the zend.ze1_compatibility_mode directive. You can read more about it here: http://www.php.net/manual/en/ini.core.php#ini.zend.ze1-compatibility-mode

The downside is that it affects cloning, casting, and comparing of objects.

 

by: Diablo84Posted on 2005-07-15 at 17:24:25ID: 14455835

f***ing gamers.

 

by: WoodyRoundUpPosted on 2005-07-15 at 18:19:24ID: 14455950

Hi Diablo84.
Another unhappy experts?

 

by: WoodyRoundUpPosted on 2005-07-15 at 19:10:28ID: 14456059

Debbieau1,

Your question is:
"Can you tell me if this means the scripts are compatible with both php4 and php5, or just php4, and are there any downsides in using this?"

And Diablo84 answered it.

DanFG only gives you the options to make it compatible, which is already compatible.

You have just made an upset greatest expert in PHP.

http://www.experts-exchange.com/M_2717973.html

 

by: debbieau1Posted on 2005-07-15 at 19:19:11ID: 14456075

I found both answers of benefit.  I did iintend to split the points, but when I accepted the first, I made an error and did not get the option to then split them.

I was grateful for both input and am disappointed if anyone is upset as I was very grateful for the input.

 

by: WoodyRoundUpPosted on 2005-07-15 at 19:29:03ID: 14456091

I know you are grateful, but you should have pointed out that you made a mistake and intended to split the points.
Then, you should go go the Community Support: http://www.experts-exchange.com/Community_Support/ to ask for re-opening of the post.

But, it's too late I guess. Unless Diablo84 decides to come back if this post is clarified.

 

by: humeniukPosted on 2005-07-15 at 19:31:14ID: 14456094

WoodyRoundUp,

Flaming or blaming debbieau1 isn't going to help the situation.

 

by: WoodyRoundUpPosted on 2005-07-15 at 19:32:27ID: 14456096

Yup, I understand that. I am sorry.

 

by: debbieau1Posted on 2005-07-15 at 19:34:35ID: 14456102

that would be great.  Thank you.  I am still finding my way around this.  I have found it of great benefit and doing sincerely appreciate the advice of the experts.  I really did not wish to upset anyone or appear ungrateful so if you could reopen it that would be great.  I tried to figure out if I could do that earlier and obviously couldn't.

Debbie

 

by: DanFGPosted on 2005-07-15 at 19:37:30ID: 14456106

I acknowledge and respect Diablo's expertise, but any points he should've gotten are not deserved anymore due to his misbehavior.

Woody, I find it appaling that would go through the trouble of arguing in favor of Diablo after he said "f***ing gamers". I have no idea what he meant by that, but in any case it's a disrespectful comment.

 

by: debbieau1Posted on 2005-07-15 at 19:41:44ID: 14456112

I am sorry to trouble you, but I do not want to make the mistake I made earlier.  when I chose "accept" at what point do I get the option to "split".  Last time, I chose, Accept and graded it, but do not recall getting the option to "split" it. I just want to make sure I do it right this time.

 

by: debbieau1Posted on 2005-07-15 at 19:45:46ID: 14456117

I think I worked it out.  I am so sorry for the confusion and upset caused.  Thanks very much Humenik for your patience and allowing me to correct this.  Thank you Dan & Diablo for your help.  

 

by: humeniukPosted on 2005-07-15 at 19:46:50ID: 14456119

Thank you for taking the time to resolve this.

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...