Help with if loop

ShoulderChip

EDIT -- Sorry I should have said in title this is for a mysql database and I am writing the code in php and html for the webpage.


Hello I want to create an if loop so people can only sign up for an event if its not full

this is the code to see the max no of particmy code for finding the max no of participants

<?php echo $row_chosencourse;

and this is how I find the total amount already signed up

<?php echo $totalRows_alreadyregisteres ?>


I want an if loop basically where it is

<?php
if ( <?php echo $totalRows_alreadyregisteres ?> < <?php echo $row_chosencourse; ) {
echo "hi";
}
?>


How do I do this properly?
is it possible

is it possible if I put the values in textfields first and if so how?
or can you create variables in html?

cheers for any help,
thank you.

decob

You know you're outputting to the screen within your 'loop'

should be...

<?php
if ( $totalRows_alreadyregisteres <= $row_chosencourse['Max Student Number'] ) {
echo "hi";
}
?>

Adam

+1

you need to brush up on your syntax, once you have opened the php braces (<?php) you don't need to open them again.

after that, you're only comparing the variables behind the scene, you don't need to echo them to do this, echo is for outputting data to the web page.

Liam Byrne

There's also no such thing as an "if loop".

The if statement does one thing or another, once.

Think of it as going left or right at a junction; you only do one and you don't go back to do the other.

if ($left_road_blocked) {
go left;
} else {
go right;
}

So for your app...

if ( $totalRows_alreadyregisteres < $row_chosencourse ) {
// code to add the record to the database goes here
echo "Thank you for registering for this course";
} else {
echo "Sorry, that course is full.";
}

As stated above, the "echo" is what appears in the viewer's browser window, so that should be a meaningful statement to tell them what happened.

ShoulderChip

cheers for all the help,

I knew the syntax was wrong but every thing I tried to change it was not working out.

it seems a bit silly now

when I had it right I was doing < and not <= so I was never going to get there.