Global And Local Variable

Example of Global And Local Variable in php

##Example1 local function variable

function test(){
    $a=10; 
        echo "  Variable A inside function: $a 
";
        }
test();
    echo "  Variable A outside function: $a 
";

##Example1 Global function variable

 
$a=10; 
function test(){
    global $a;
        echo "  Variable A inside function: $a 
";
        }
test();
    echo "  Variable A outside function: $a 
";