PHP Global

<?php
$GLOBALS["var"] = $value;

echo $var;
?>

<?php
$a = 1;
$b = 2;

function Sum()
{
    $GLOBALS['b'] = $GLOBALS['a'] + $GLOBALS['b'];
} 

Sum();
echo $b;
?>

<?php
$a = 10;
$b = 20;
function getMin ( ) {
global $a, $b;

if ($a < $b)
return $a;
else
return $b;
}

function getMin2 () {
if ($GLOBALS["a"] < $GLOBAL["b"])
return $GLOBALS["a"];
else
return $GLOBALS["b"];
}

echo getMin()."<BR>\n";
echo getMin2()."<BR>\n";
?>

<?php
$a = 10;
$b = 20;
function getMin ($a, $b) {
if ($a < $b)
return $a;
else
return $b;
}

echo getMin($a, $b)."<BR>\n";
?>

<?php
function MyFunc() {
static $num_func_calls = 0;
echo "my function\n";
return ++$num_func_calls;
}
?>

<?php
function foobar() {
return array ("foo", "bar", 0xff);
}
list ($foo, $bar, $num) = foobar();
echo "$foo $bar $num <BR>\n";
?>