Day8.md

#Day 8

##Jason

###Functions!!!!!! Functions!!!!!

function name($arg_1, $arg_2, /* ..., */ $arg_n) {
	// code goes here
}

For example

function adder($num_1 , $num_2) {
	echo $num_1 + $num_2;
}

adder(38,4);

will output 42.

NOTICE The variables created inside the function paramaters only exist inside the function. And variables created outside the function cannot be referenced inside the function. This is referred to as SCOPE!!!

We can assign default variable values by assigning it in the paramaters of the function initiation. i.e. function($a,$b,$strict = true) {}; will default $strict = true if no variable is assigned when the function is called.

What do we do when we want to pass an undefined amount of variables into a function??

Note PHP has a predetermined order of precedence in type casting for comparisons.

####Lunch

###Winslow Swart Strategic Being

*Core Values 1. Wisdom

##Ben

###Return Allows us to get values back from within functions! NOTICE return will cause a function to leave immediately!