making your own functions

BluntedbyNature

im not planing on making any as of right now, but i would like to know for future refrence, how do you make your own functions. is it something like this

function my_function(what i want my function do goes here)

then when i want to use it i do something like

my_function()

and it will do what ever i have in the first PHP box up there?

jburfield

Take a look at the manual...that's the best place...

But, a quick overview is this:

you can say:

function function_name($var1, $var2) {
print("var1 is: " . $var1 . "<BR>\n");
print("var2 is: " . $var2 . "<BR>\n");
}

When you run the function with:

function_name("Big", "Computer");

The output would be:

Big
Computer

You do not always need to pass in variables, however, quite often you will.

-- Jason

cgraz

yup. If you want a funtion that prints hey there, you'd do something like this:

function printText() {
   echo "hey there";
}

Then to call up the function, you'd use

printText();

You an also specify parameters with defaults.


function printText2($text = "what up") {
   echo $text;
}

// if you call it up like this
printText2();

// it will print the default of "what up"

// if you specify the text to print, it will print that text

printText2("print this text");

// will output "print this text"

Cgraz