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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Hacker's Corner</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<?php
$var = 1;
function test1()
{
/* local var */
$var = 2;
echo $var . "<br />\n";
}
function test2()
{
global $var; /* extern */
$var = 2; /* now we actually change the global */
echo $var . "<br />\n";
}
function test3()
{
/* local var with ability to retain value in multiple calls */
static $var = 0;
echo "test3 var: {$var}<br />\n";
$var++;
}
test1();
echo $var . "<br /><br />\n";
test2();
echo $var . "<br />\n";
test3();
test3();
test3();
test3();
test3();
echo $var;
?>
</body>
</html>
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