Reference local variable in a function outside in PHP
Description
The following code shows how to reference local variable in a function outside.
Example
<!DOCTYPE html>//from w w w . j ava 2s . c om
<html>
<body>
<h1>Understanding variable scope</h1>
<?php
function helloWithVariables() {
$hello = "Hello, ";
$world = "world!";
return $hello . $world;
}
echo helloWithVariables() . "<br/>";
echo "The value of \$hello is: '$hello'<br/>";
echo "The value of \$world is: '$world'<br/>";
?>
</body>
</html>
The code above generates the following result.
