[Resolved] What's a period do?

[bizchris2001]

I tried the manual, etc., but can't seem to find out what a period does in code like this:

$POST['field']="http".($bbbbbbb (-->see the period - what's it do? why not just chop it out and do $_bbbbbbb?)

Quid pro quo, I can provide something I've learned so far: 🙂

1) \ is to make it so the next character isn't counted. This comes in big when you're trying to build [...<a href=" ">""blah">">...]nonsense, you can use the \ tell the php which "s not to count cuz you're actually trying to pass it over to the HTML.

Hope this makes sense - TIA for the period answer,

Chris

[bizchris2001]

Never mind, found it - gimme a sec and I'll post, just want to catch anyone who might be typing a response 🙂

[bizchris2001]

What does the period right after $total mean?

PHP:

echo $total."<br><br>";

---

it's a concatenator, basically allows you to break out of a string and push an echo without having to put in several lines of code, example:

<?php

echo "Hello, ". $yourname ." i am from the planet ". $planet .".";

// otherwise, you'd have to do:

echo "Hello, ";
echo $yourname;
echo "i am from the planet ";
echo $planet;
echo ".";

?>
see how much simpler it makes it?

[tekky]

[edit] hah! you didnt catch me! but you beat me cause of my explaining my script 😛

Heya Chris wb! 😃
I got something to show you! today 🙂

any how

. is the string concatenation operator 😉

ie:

$var = 'test';
$val = ' failed';
$test = $var.$val;
echo $test;

result: "test failed"

anyways have a look at this here image script

it will also take the values
th=tlt2bv (top left top to bottom vertically)
tlt2bh (same but horizontal)
trt2bv (top right top to bottom vert)
trt2bh (same but horiz)
blt2bv (bottom left top to bottom vert)
blt2bh (same but horiz)
brt2bv (bottom right top to bottom vert)
brt2bh (same but horiz)
tll2r (top left left to right)
trl2r (top right left to right)
bll2r (bottom left left to right)
brl2r (bottom right left to right)
tx=specify cordinates if not specifying th=
ty=same but for y axis
ft=font (not sure which will currently work besides 1-5)
fn=filename (can see what are available at http://tekky.xnet.org/p_images/ )
fc=color in hex ie FFFFFF format w/o the #
tt=text to display....

[note] this does not permantly change any files, only the output before the browser is modified 😃

[tekky]

Originally posted by bizchris2001
What does the period right after $total mean?

PHP:

echo $total."<br><br>";

--------------------------------------------------------------------------------

it's a concatenator, basically allows you to break out of a string and push an echo without having to put in several lines of code, example:

<?php

echo "Hello, ". $yourname ." i am from the planet ". $planet .".";

// otherwise, you'd have to do:

echo "Hello, ";
echo $yourname;
echo "i am from the planet ";
echo $planet;
echo ".";

?>
see how much simpler it makes it?

hehe or in your example you could simply use....

echo "Hello, $yourname I am from the $planet.";

😉

$vars are parsed inside of double quotes ["] but not inside of single quotes ['] 😉

[bizchris2001]

Hehe hey Tekky, that's pretty cool. 😃 I've seen lots of posts regarding PHP and images, but never saw what the big deal was - that's fun to play around with, though.

For my next trick, I'm picking up mySQL (I have pretty good Access SQL experience up through union selects, so it shouldn't be too tough), and then gonna see what I can do to make a web dropdown on a page where the dropdown has values from the db. Maybe I'll let users replace the dropdown text just for fun. :p Anyway, I'll let this thread die now, but will look forward to seeing you on the boards. 😃

Chris