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php/e05GetServer.php

<html>
 <head>
  <title>PHP Test e05GetServer</title>
 </head>
 <body>
  <h2>Output</h2>
 <?php echo '<p>Hello Walter von' . __file__ . '</p>'; 
echo '<p>getcwd = ' . getcwd() . '</p>';
myList($_GET, '$_GET'); 
echo "\n<p>\$_SERVER['QUERY_STRING'] ===> " .  ($_SERVER['QUERY_STRING'] ?? '---undefined---');
echo '<br> ... urldecode ===> ' .  urldecode($_SERVER['QUERY_STRING']);
echo '<br> ... split [&\s]+  ===> ' .  '[' . implode(', ',preg_split('/[&\s]+/', urldecode($_SERVER['QUERY_STRING']))) . ']';
#        . '</p>';
myList($_POST, '$_POST'); 
myList($_SERVER, '$_SERVER'); 
is_callable('getallheaders') ? myList(getallheaders(), 'getallheaders()') : (function () {echo "\n<br>getallheaders() ---undefined";})();
$ii = file_get_contents('PHP://INPUT');
echo "\n<br>file_get_contents('PHP://INPUT') len " . strlen($ii) . "<code>$ii</code>";
echo "\n<br>http_get_request_body() ===> install pecl_http first" ; #. (http_get_request_body() ?? ' ---null--- ');  
myList($_ENV, '$_ENV');
myList(getenv(), 'getenv()');
echo '<br>getenv(USER) ===> ' . getenv('USER');
echo '<br>getenv(PATH) ===> ' . getenv('PATH');
echo '<br>getenv(PWD) ===> ' . getenv('PWD');
echo '<br>realpath(.) ===> ' . realpath('.');

#session_start();
#myList($_SESSION, '$_SESSION'); 

 echo '<p> print_r $_GET[\'pZwei\'] = '; print_r(isset($_GET['pZwei']) ? $_GET['pZwei'] : 'isset==false' ) . '</p>'; 
 echo '<p> print_r $_GET = '; print_r($_GET) . '</p>'; ; 
?> 
 <h2>Source</h2>
<?php highlight_file( __file__ ) ?>
 </body>
</html>
<?php
function myList($a, $t) {
    echo "\n<p>$t<ol>";
    foreach ($a as $key => $value) {
        echo "\n    <li>$key ===> $value </li>";
        }
    echo '</ol> </p>';
}
?>