Creating PHP variables with fixed strings

[chrisshortys]

Hi there, I am very new to the world of coding but am slowly creating pages!

 

Now I have been doing work with PHP and mySQL this week and I have a question that I cannot find the answer for(probably because I am searching for the wrong phrase!).

 

What I want to be able to do is to take a piece of information from a html form and convert this into PHP a variable but with a modification. e.g.

 

 

From the html table the data is stored in the html variable "comp"

 

$tablename = $_POST[comp]

 

Now what I actually want the variable to end up as is something like BL_comp or comp_BL

 

How do you place the letters before or after the html/PHP variable?

 

All help would be greatly appreciated!

 

Chris

[Jessica]

Search the PHP manual for "concatenation".

 

Also use quotes around your array keys when they are strings. Read the whole PHP chapter on strings.

[chrisshortys]

Thanks! I shall give that a read tomorrow afternoon! As a quick follow on question then would the following work?

 

<?php

$tablename = $_POST[comp];

echo "BL_{$tablename}";

?>

Edited January 25, 2013 by chrisshortys

[Jessica]

It might if you defined $a, and used quotes on your array key.

[chrisshortys]

So say the html variable in comp is "test" does this code change the Variable $tablename from "test" to "BL_test"?

 

<?php

$tablename = $_POST[comp];

echo "BL_{$tablename}";

?>

 

and yes I shall sort the quotes out

[Jessica]

Did you try it?