Recursive Function

Example of Recursive Function in php

##Example1

function display($number){
    if($number <= 5){
        echo "$number 
";
        display($number+1);
    }
}

display(1);

## Factorial Example

 
function factorial($n){
if($n==0){
    return 1;
}else{
    return($n * factorial($n-1));
}
 }
 echo factorial(5);