Zahid Habib

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Ok imma start out by explaining what a php function is a function in php basicly can be used to hold blocks of code that you wanna use more then one time in your scripts. To start a function you write out the word

function like so then you give the function a name
 

function mycat() { //Block of code goes here }
So say you wanted to have a function that protects variables when inserted in a database you could do this
 

function protect($value){ $value = mysql_real_escape_string($value); return $value; }
 
So this code creates a function that uses mysql_real_escape_string to protect any variable you might like if your inserting it into a database to use this function just call it like this.
 

$myvariable = protect($_POST['name']);
 
So as you can see we wrapped our function around $_POST['name'] this will protect whatever value name is when inserted into a mysql database.
 
To simply output something that is inside a function you would do this
 
 

function hello(){ echo "HELLO WORLD!"; }
 
Then call this function like this
 
 

hello();
And that when ran will print out HELLO WORLD!
 
so this was a short tutorial on functions and how to
use them in php if you
like this tutorial give me a +1 thanks