Migrating from PHP to ASP.NET

Re: Php performance vs ASP.Net Performance

ShunTrevor1985 — Sat, 25 Nov 2006 10:49:36 GMT

Ok. second post here. I'm an ASP fanatic too and have been developing ASP projects (school. LOL) since first year college. Sometimes, I do weigh things up too. Of course. See php forums and sites so i can analyze things out accordingly... sometimes i'm annoyed by the conversations and nonsense things. Either way, I'm now moving to .Net since it's the mouth of the crowd lately and since most corporations are so conscious about Microsoft Technology, I let my self-in into the .Net stream. sometimes, i can't figure out solutions on some .Net applications that I want to accomplish... just like my first post.

Ok, since this is between PHP and ASP.Net arena, i will inject an irony for what Microsoft has said in the .Net MSDN. It's about performance. It's true that .Net offers cool features, controls, class and such but this is really an irony on their expertise:

Use ASP.NET server controls in appropriate circumstances. Review your application code to make sure that your use of ASP.NET server controls is necessary. Even though they are extremely easy to use, server controls are not always the best choice to accomplish a task, since they use server resources. In many cases, a simple rendering or data-binding substitution will do. The following example demonstrates a situation in which using a server control is not the most efficient way to substitute values into the HTML sent to the client. Each method sends the path to an image to be displayed by the requesting browser, but using server controls is not the most expedient approach, since the Page_Load event requires a call to the server for processing. Instead, use render statements or data-binding expressions. If you have a large Web application, consider performing pre-batch compilation.

So, why introduce many fancy class and controls.... if we are to minimize their use?

Re: Php performance vs ASP.Net Performance

saner — Sun, 06 Aug 2006 10:06:07 GMT

I did some tests on my own, therefore I'm certain that ASP.NET is a few times faster than PHP. Maybe I will do some DBMS tests in a few days, I will inform about results.

Re: Php performance vs ASP.Net Performance

CosmicGirl — Thu, 03 Aug 2006 00:04:34 GMT

2 Lou Blobbs :

lou, if you find that your site is a mess to maintain cause it grewit has nothing to do with php and a lot to do with your bad design. Unless of course, your requirements have changed so much that you simply need to re-write it.

Re: Php performance vs ASP.Net Performance

stefanw_nl — Wed, 02 Aug 2006 13:05:14 GMT

With PHP5 OO is very easy and your code is cleaner. Also with MySQLI is finaly fully intregrated with PHP this means its faster lots of faster. And MySQLI gives a object back that you can use with a foreach loop.

This way of programing I couln't (yet) find in ASP.NET :(

Anyone?

I'm a ASP.NET C# programmer and I using C# with more fun than PHP but somethings I mis in ASP.NET

Re: Php performance vs ASP.Net Performance

Lou Blobbs — Fri, 28 Jul 2006 17:07:51 GMT

Sharbel_:

Again, I am proficient in both but *choose* .NET. I don't develop trivial web-applications, and I am coding roughly 10 hours a day. If PHP was better, faster, easier or any combination of the three I honestly might be using it. For right now I will stick with .NET :)

I agree with this. I wrote a rather large sports management database site using PHP/MySQL and it just became a mess to maintain as it grew. I am in the process of re-writing it in C# and it is much, much nicer. My code is cleaner, I'm not doing things ad-hoc because the OO is amazing in C#, and it's coming along more quickly so I can do things the way they should be done.

PHP is nice for small sites, but large sites with a lot of objects and pages, it's just a mess.

Re: Php performance vs ASP.Net Performance

Sharbel_ — Tue, 25 Jul 2006 23:06:08 GMT

I am sorry, but I am very proficient in both PHP and ASP.NET, but I choose C#/ASP.NET. I will be honest, ASP.NET 1.0 was a pretty steep learning curve compared to 2.0, but if you are a coder and find .NET 2.0 hard, my goodness become a designer or something :)

Seriously though, I find a lot of fellow coders who say "I can accomplish that much easier in PHP compared to .NET" simply do not understand .NET or are not sufficiently proficient in developing in it. I remember whining "My god why is this so hard compared to ASP??" back when beta 1 came out eons ago (ok 6 years ago) and it really was just my ignorance.. Again, the learning curve was definitely greater with 1.0.

Again, I am proficient in both but *choose* .NET. I don't develop trivial web-applications, and I am coding roughly 10 hours a day. If PHP was better, faster, easier or any combination of the three I honestly might be using it. For right now I will stick with .NET :)

Re: Php performance vs ASP.Net Performance

Googzie — Sat, 22 Jul 2006 17:43:13 GMT

pickyh3d:
I'm still considering moving from PHP to ASP.NET as well, and as it stands now I think I will try to make my next page with ASP.NET. I am curious if maybe your two speed variances occur because one is using C# and the other is using VB.NET? Is C# faster than VB.NET, or does it make no difference?

Absolutely no perfomance difference at all, all .NET language are compiled into a machine language and that's what get executed instead of your VB or C# code.

Re: Php performance vs ASP.Net Performance

Seann — Fri, 21 Jul 2006 21:09:54 GMT

adec:
CosmicGirl:
Php engine is a lot less complex, php is not a framework like asp.net, there are no 20 objects on top of one another.

CosmicGirl:
My app was very easy - fetch the data from the database, present it to the user. in php it would have been 3 files, asp.net is simply too complex for this small app.

adec:
Sorry CosmicGirl, but I cannot agree. Presenting Data from a Db including Paging etc can in it's simples form be accomplished with only a few lines of code. I fact, with Asp.Net 2.0 and the GridView Control in it simplest form, you actually get Paging, Sorting, Editing, Updating, Deleting and Inserting data records literally without writing any code if you use VS Studio 2005 (as well as using Visual Web Developer which is free of charge). See a live example here.

I believe this is exactly what CosmicGirl was saying. Even though you physically only write a few lines of code, there still is a large amount of behind the scenes work going on.

While you can write a small script in PHP that literally just does pagination, maybe that is all you need. All that extra code that is taking up memory is not used, because maybe it is a read only site.

Flexibility over usability, verses processor cost.

Re: Php performance vs ASP.Net Performance

LudovicoVan — Wed, 19 Jul 2006 01:17:40 GMT

CosmicGirl:
by the way, why do ALL the errors say:
"Object reference not set to an instance of an object."????

This reminds me the good old days of learning C, and getting every kind of access violation and wandering pointers. A null pointer actually was a lucky case, and i needed some time to just learn how to debug...

Great times...

:) -LV

Re: Php performance vs ASP.Net Performance

CosmicGirl — Tue, 18 Jul 2006 18:07:07 GMT

^thanks, I knew that ....however, this error does not always mean that. You described the easiest case. Sometimes, it is pretty hard to understand what exactly the compiler is complaining about,

I am not migrating to ASP.net from PHP - I just changed jobs

Re: Php performance vs ASP.Net Performance

nr2ae — Fri, 30 Jun 2006 14:03:31 GMT

I admin that I'm new to ASP.NET, but I must say "Object reference not set to an instance of an object." is the most common, but the simplest to solve, if you really understand your code.

"Object reference not set to an instance of an object." means what it said. You must set an instance of object to the object varriable you've declared. For example (VB.NET):

Dim bytBuffer As Byte()
Dim objFileStream As System.IO.FileStream
objFileStream.Read(bytBuffer,0,200)
objFileStream.Close

This would cause the error because objFileStream does not represent anything. But bytBuffer won't cause error because it is a value type variable, not a reference type variable, like objFileStream. Here's the solution

Dim bytBuffer As Byte()
Dim objFileStream As System.IO.FileStream
objFileStream = New System.IO.FileStream("C:\MyFile.txt",FileMode.Open)
objFileStream.Read(bytBuffer,0,200)
objFileStream.Close

Because of the added line, objFileStream now represent a file stream which read the file "C:\MyFile.txt".

ASP.NET engine cannot explain more that those words. The only way to get more information is to enable "debugging" in web.config. Then, when the error occurs, you can see exactly which line causes the error. Check the codes around that line and you'll be able to solve in in a short amount of time.

By the way, I recomend you to read some techincal articles like "Migrating from PHP to ASP.NET which can be found it in the Microsoft Visual Studio 2005 Documentation. However, if you still like script programming, I recommend you to continue using PHP.

Re: Php performance vs ASP.Net Performance

AlaorNeto — Sun, 25 Jun 2006 03:23:10 GMT

Err, I was a PHP developer till two weeks ago. I must say, ASP.NET IS NOT hard to learn if you always had some experience with java, c#, etc... It's really quite simple, but disturbing colossal. I don't think I wanna go back to PHP anymore.

Re: Php performance vs ASP.Net Performance

CosmicGirl — Thu, 22 Jun 2006 23:56:28 GMT

by the way, why do ALL the errors say:

"Object reference not set to an instance of an object."????

cant they elaborate and explain what actually happens or is it too much to ask? i find the error messages so cryptic that it almost doesnt matter if it says the above or just "Error".

the stack trace is also not terribly helpful. i will admit that sometimes it is, but in most cases, you just have to sit there and guess whats happened.

and of course, once you know it is easy to deal with. but then i might spend a day to find out why.....

Re: Php performance vs ASP.Net Performance

CosmicGirl — Thu, 22 Jun 2006 23:46:12 GMT

thanks Andre,

i have posted there about 30 minutes ago. my posting has not even been posted yet - moderators.

the whole issue of me not knowing what's wrong, having to wait hours before the posting gets posted, then days before someone replies to me...then in the end of it all i simply do not understand why displaying a text confirmation has to be so hard...it could easily be done with

<table><tr><td>{$message}</td></tr></table>

pass $message to template, done!

sorrry, i am just way too frustrated here. wish these forums actually helped.

Re: Php performance vs ASP.Net Performance

adec — Thu, 22 Jun 2006 23:42:23 GMT

First of all, asking Asp.Net related questions in this forum (Migration to ASP.NET) is probably not a good idea. In your case, I would try the Data Presentation Controls forum, and I'm sure you will get a quick answer provided you give us a little more info about the error. Is it possibly "Object not set to an instance of an object"? This is a very common error and easily solved once you know why it occurs and how to deal with it.