Functions

Here’s a how a function is written:

<?php

function functionName ()
{
code here;
}

?>

To start a function, you simply write ‘function, followed by the name of the function, which in our case is ‘functionName’. Function names can never start with a number, only a letter or underscore, the same as a variable’s name. After the function’s name, we’ve got two parentheses (()), followed by the two curly brackets. Within the two curly brackets is where we write the code that we want to be executed.

We’ll make the function ‘functionName’ echo out my name:

<?php

function functionName ()
{
echo "Owen Yue";
}

?>

We’ll now echo out some text:

function functionName ()
{
echo "Owen Yue";
}

echo "Hi there, my name is ";

?>

And now we’ll call the function:

<?php  

function functionName ()
{
echo "Owen Yue";
 }  

echo "Hi there, my name is ";
functionName();

 ?>

That will give us this:

Hi there, my name is Owen Yue
That’s just the basics; I’ll hopefully add another tutorial (or add to this tutorial) going a little more in-depth with functions. Hope this helps!