Trim the last character off of a string.

ThaSpY

I have a string that contains
$var="230,430,9005,400,769,";

and i would like to trim off the last comma. Whats the simplest way to do this? thanks.

pyro

rtrim() ought to do fine.

LordShryku

Or [man]substr[/man]

ThaSpY

Sorry, I'm a bit of a beginner here... I read up on those two functions and still don't know what it is I need to do. I was hoping for an example and would appreciate one! Thanks!

Weedpacket

Originally posted by ThaSpY
Sorry, I'm a bit of a beginner here... I read up on those two functions and still don't know what it is I need to do. I was hoping for an example and would appreciate one! Thanks!

But there are examples on those manual pages - what you're really wanting is someone to write it for you, aren't you?

The rtrim() is the simplest method. It "...returns a string with whitespace stripped from the end of str". And you can "list all characters that you want to be stripped".

ThaSpY

$trimmed = rtrim($text);

Deletes whitespace... how does that help me? Read the thread title again.

$trimmed = rtrim($text, " \t.");

There's no explanation for this so I have no clue what it does.

$clean = rtrim($binary, "\0x00..\0x1F");

I doubt this is what I want either.

Some examples. The manual is confusing as hell. That was the first place I looked before I even came here. If it is as simple as you say, why couldn't you just write the one line for me so I can understand. It would be a lot faster to do than that whole paragraph you just gave me.

Weedpacket

Originally posted by ThaSpY
There's no explanation for this so I have no clue what it does.

Yes there is!

Originally posted by Weedpacket
And you can "list all characters that you want to be stripped".

I could just write the one line for you, but really it is very very simple and shouldn't be anywhere this much trouble for anyone with programming ability.

Have you:

Tried anything there?
Experimented?
Read the user notes?

What's confusing? What do you expect the manual to do? Contain every single possible application of every single function that anyone could ever possibly want?

pyro

Originally posted by ThaSpY
why couldn't you just write the one line for me so I can understand.

I agree with Weedpacket, having one of us write the line for you wouldn't be the best way for you to understand. Sure, you'll know how to do this, but how about the next problem you run into? It's better for us to just teach you how to solve the problem, rather than just solve it for you.

LordShryku

Originally posted by ThaSpY
If it is as simple as you say, why couldn't you just write the one line for me so I can understand.

We're not here to do the work for you. The manual provides all of the examples you need, and if you don't understand those, try google. Or search this site. The code for something like this has been posted thousands of times. We have no problem pointing you in the right direction, but when you ask us to do things for you, you're crossing the line. We're not your personal coders.

ThaSpY

All people learn differently. I myself learn by studying a concrete example that I understand, and then expanding onto that. You've given me no starting point and that is where we are at a misunderstanding. I don't need any more help with this, I've found another way of doing it. But I just thought I'd let you know this.