Lesson 2A & 2B

Just a question.

I will probally finish these two before 1A and 1B. As I am working through the Masterskills manual page by page as not to lose any info.

Will that be okay

You can work backwords through the manual if you want, although that would probably make it a bit harder

Okay thanxs

Hi

I am still not 100% with the coding's
but I have completed task 2A thanks for your help
do I only use POST to combine HTML and PHP if I work with the to coding's together

Hi

why in task 2A-1 Variables
when you put the ISSET CODE you add ECHO in front of it
<echo isset($computer);>

but when you UNSET there is no ECHO in front of UNSET
<unset ($computer);>
why is it like that

the "echo" is a built-in function (it works by itself to do stuff) that prints stuff
isset is a function that checks if a variable exists
so

Language: PHP
echo isset($computer);

means print the variable $computer (if it exists)

unset is a function that merely destroys the variable. You can't print something that you have just destroyed, so there is nothing to print!

You could do this though:

Language: PHP
unset ($computer);
echo "The variable has been destroyed!";

ok thanks I understand

Hi

when I submit my book from the selection list it doesn't display
the selected books name ore the author
it only displays "The author of is."

I don't think it is correct am I doing something wrong
can you pleas assist me

<?php
$books["Romeo and Juliet"] = "William Shakespeare";
$books["Exobiology: An Introduction"] = "Jonathan Drake";
$books["War and Peace"] = "Leo Tolstoy";
$books["Portrait of the Artist"] = "James Joyce";
$books["The Lion, The Witch, and the Wardrobe"] = "CS Lewis";
$author = $books[$SelectedBook];
echo "The author of $SelectedBook is $author.";
?>

Thanks

Come on other students - you're supposed to help as well!

All I'm going to say now (I want you to struggle) is that you must look at the previous forums. Post here only if you can't find the answer there (this is an important skill and I am not going to feed you ). It is no use we just correct your code for you

Plus - have you got the handbook and have you read the relevant pages that is related to this topic? If you work just out of the manual you will not get it to work..!

Ok, I'll be nice this time - see here http://osprey.unisa.ac.za/phorum/read.php?265,85854
Exactly your problem...! And the solution.

I'll give you another clue - see the last post http://osprey.unisa.ac.za/phorum/read.php?215,73661 and try and read up on $_POST and $_GET and what it does to resolve your problem.

try this I'm not so sure either

Language: PHP
<?php
$tireqty = $_POST[‘tireqty’];
$oilqty = $_POST[‘oilqty’];
$sparkqty = $_POST[‘sparkqty’];
?>

gbakamela [77234715]

There are two ways around this problem:
Use double quotes if the text includes any apostrophes.
Precede apostrophes with a backslash (this is known as escaping).
So, either of the following is acceptable:

Language: PHP
$book[';description';] = "This is David';s sixth book on PHP.";
$book[';description';] = ';This is David\';s sixth book on PHP.';;

Language: PHP
$play = "Shakespeare';s "Macbeth"";

In this case the apostrophe is fine, because it doesn’t conflict with the double quotes, but
the opening quotes in front of Macbeth bring the string to a premature end. To solve the
problem, either of the following is acceptable:

I hope this will solve the problem unless I'm missing your core problem (NERDO!)

gbakamela [77234715]

Hi

I have completed 2B-1

$SelectedBook=$_POST['SelectedBook'];
the code doesn't work in small caps
ones I changed it to capital letters it worked

thanks for all the help

Cool I wonder why I had it working...