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<!DOCTYPE html>
<html lang="en">
<head>
<title>Week 3 - 6.php</title>
<meta charset="utf-8">
<body>
<h1>Week 3 - 6.php</h1>
Looking at scopre<br>
<?php
$x = 5; // global scope
function myTest() {
// using x inside this function will generate an error
echo "<p>Variable x inside function is: $x</p>";
}
myTest();
echo "<p>Variable x outside function is: $x</p>";
function myTest2() {
$y = 5; // local scope
echo "<p>Variable y inside function is: $y</p>";
}
myTest2();
// using x outside the function will generate an error
echo "<p>Variable y outside function is: $y</p>";
$x = 5;
$y = 10;
function myTest3() {
$GLOBALS['y'] = $GLOBALS['x'] + $GLOBALS['y'];
}
myTest3();
echo $y;
?>
<pre style="background-color:#afa;"><? var_dump($GLOBALS);?></pre>
</body>
</html>