PHP Sandbox from Brad Traversy. From the youtube series ''PHP Front To Back"
<?php
# FUNCTION - Block of code that can be repeatedly called
/*
Camel Case - myFunction()
Lower Case - my_function()
Pascal Case - MyFunction()
*/
// Create Simple Function
function simpleFunction(){
echo 'Hello World';
}
// Run Simple Function
//simpleFunction();
// Function With Param
function sayHello($name = 'World'){
echo "Hello $name<br>";
}
//sayHello('Joe');
//sayHello('Bob');
//sayHello('Tim');
// Return Value
function addNumbers($num1, $num2){
return $num1 + $num2;
}
//echo addNumbers(2,3);
// By Reference
$myNum = 10;
function addFive($num){
$num += 5;
}
function addTen(&$num){
$num += 10;
}
addFive($myNum);
echo "Value: $myNum<br>";
addTen($myNum);
echo "Value: $myNum<br>";
?>