<pre> 
&lt;html>
&lt;head>
&lt;title>Print all PHP variables&lt;/title>
&lt;/head>
&lt;body bgcolor=lightyellow>
&lt;h1 align=center>Print all PHP variables&lt;/h1>
&lt;br>&lt;br>
&lt;?php

    print "&lt;b>The _GET Variables&lt;/b>&lt;br>";
    foreach($_GET as $name => $value)
	print "&lt;br>&lt;b>" . $name . " = &lt;/b>" . $value ;
    print "&lt;br>&lt;br>&lt;hr>";

    print "&lt;b>The _POST Variables&lt;/b>&lt;br>";
    foreach($_POST as $name => $value)
	print "&lt;br>&lt;b>" . $name . " = &lt;/b>" . $value;
    print "&lt;br>&lt;br>&lt;hr>";

    print "&lt;b>The _COOKIE Variables&lt;/b>&lt;br>";
    foreach($_COOKIE as $name => $value)
	print "&lt;br>&lt;b>" . $name . " = &lt;/b>" . $value;
    print "&lt;br>&lt;br>&lt;hr>";

    print "&lt;b>The _REQUEST Variables&lt;/b>&lt;br>";
    foreach($_REQUEST as $name => $value)
	print "&lt;br>&lt;b>" . $name . " = &lt;/b>" . $value;
    print "&lt;br>&lt;br>&lt;hr>";

    print "&lt;b>The _ENV Variables&lt;/b>&lt;br>";
    foreach($_ENV as $name => $value)
	print "&lt;br>&lt;b>" . $name . " = &lt;/b>" . $value;
    print "&lt;br>&lt;br>&lt;hr>";

    print "&lt;b>The _SERVER Variables&lt;/b>&lt;br>";
    foreach($_SERVER as $name => $value)
	print "&lt;br>&lt;b>" . $name . " = &lt;/b>" . $value;
    print "&lt;br>&lt;br>&lt;hr>";

    print "&lt;b>The _SESSION Variables&lt;/b>&lt;br>";
    foreach($_SESSION as $name => $value)
	print "&lt;br>&lt;b>" . $name . " = &lt;/b>" . $value;
    print "&lt;br>&lt;br>&lt;hr>";

    print "&lt;b>The _FILES Variables&lt;/b>&lt;br>";
    foreach($_FILES as $name => $value)
	print "&lt;br>&lt;b>" . $name . " = &lt;/b>" . $value;
    print "&lt;br>&lt;br>&lt;hr>";

    print "&lt;b>The php_errormsg Variable&lt;/b>&lt;br>";
    print "&lt;br>&lt;b> php_errormsg = &lt;/b>" . $php_errormsg;
    print "&lt;br>&lt;br>&lt;hr>";
?>

&lt;?php include "../include.php"; ?>		&lt;!-- hyperlink to see the code -->
&lt;/body>
&lt;/html>
</pre>