Hi everyone.

I'm starting a weight loss blog.

What I want to do is put up at the top the "target amount to lose"

the way I'm setting this up is that the entry title will be the current day's weight. A number only.

So, what I want to do is take the current day and subtract it by my target weight (120). I'll be updating the site once a day so rebuilds aren't an issue, it'll rebuild when I make the entry....

I may not even need php to do this, I don't know.

But if someone can help me out, what I want to do is take the current days weight (the MTEntryTitle from the latest post) and subtract it by 120.

If anyone is willing to help me out with some code for this I'd really appreciate it. =)

Thank you!

-Lisa

Something like this ought to do it:

Is that the kind of thing you want? Just shout if you want an explanation or some more help. I like learning PHP.

p.s. You can find a run down of the basic mathematical operators for PHP here at w3schools.

You're a saint, thank you Maddy!!

Just one question, if I may?

I tried to change the order around, so it would say "blah lbs left to go"

but it wouldn't do it...

I tried like this





but it gave me a parse error.. so I'm guessing I missed something... I'll have to read through that link later, and I want to learn php but I'm really busy with college apps so I'm here looking for shortcuts *blushes*

thank you so much =)

And if you want to keep track of your total loss so far as well, you could use something like this:

I've no doubt the code could be tightened up and cut down to just a line or two, but I like to make it clear what I'm doing.

That should do it. It's all about concatenation. It throws me too, most days.

Oh my god. That is brilliant. That one I'm putting in exactly as is, I love it.

Thank you =)

After you went and showed me how to fix the 'lbs left to go' part, I went and used your other php instead. Thank you so much.

I haven't done the design yet, but if you want to see what I've done is here. The menu stuff has no links yet, since I started this only an hour or so ago hehe.

Thank you so much, I really appreciate all the help!

Glad to help.

Just for fun, since Maddy mentioned concatenation, here's another way you can separate things. I tend to use the comma method instead of periods it because its what Brenna first showed me when I was learning.



If you are putting multiple variables in an echo statement, its easy to see where they start and end:



Sometimes, it even works to put

But I'm not sure why its not as consistant about working. Maybe it depends on whether you use single or double quotes.

So there ya go, a little PHP lesson from someone who really doesn't know that much. Back to you, Miss Maddy

That's neat, thank you for posting it. I've got the thing finally live, I had decided to keep it simple but ended up making it failry complicated on the back end. Lot of comparisons going on, bleh! Apparently, I'm addicted to MT or something. =)

I think as it goes on I can make a lot of use of that, maybe even something on an entry by entry basis.. thank you for posting it, it helps a lot. =)

Hehe. I think you know quite a bit more than me! Thank you for your lesson, Ms Kristine.

Yeah, but I've only been learning since I started using MT, so I'm still behind the smart people, like, say, my husband. ;-) I still use the PHP manual about every day.

Aren't we all?

Yes

If it's not very difficult (if it is complcicated, I'll live with it)... is it possible to round?

right now it's saying this:

Still to go: 106.6
Lost so far: 0.40000000000001

which may appear to be a little bit nit picky on my part *grins*

I was thinking of cutting it off after the 4 (wow, that's what, to the 10th rights? I can't even do math much less code for it ) so, anyway.. one number to the right of the decimal point....

Like I said, if it's difficult, it's ok to leave it like that, I don't want to abuse your kindness =)

thank you!

round()

thank you imabug, but I see here how to round via the examples, but not how to incorporate it or to round the generated variable from the code above



being what i ended up going with. =)

Try this for the center section:


I think that should do it; the 1 means 1 decimal place.

Are you using whole numbers in your entry? I'm trying to figure out why it is showing all those decimal places anyhow!

Kristine

No, I'm going to a 10th - which is what my scale goes to. Today my weight was blahtoomuchblah.6 *whistles* so that's what I put.

I need all the encouragement I can get, I'll take .4 =)

worked purr-fectly, thank you thank you thank you so so so so much. =)

You are welcome!

Still, it seems weird that if its a number to the tenth to show .400000000000001 for any reason! Obviously, fixable by some code, but odd!!

Kristine

I have no idea why, I assume that it's simply because computers are literal and do what you say. Still, the math seems very odd - to go THAT far to get to a 1?

Oh well, that's why programming drives me nuts when I try it. I used to get Access db's to throw fits at me - actually, thats kind of fun.

But it's fixed now, thank you so much. It's all running really smoothly now. Got MTAdminLink in there so updating what I've done is a cinch.

Love MT, yes I do. =)