Webserver and PHP configuration tester

webserver-test.php

<?php

/**
 * Webserver and PHP configuration tester
 *
 * @author odan
 * @license MIT
 */
if (!isset($_SESSION)) {
    session_name('phptest');
    session_start();
}

write("Time: " . date('Y-m-d H:i:s'));
write("Host: " . $_SERVER['HTTP_HOST']);
write('');


$arrModules = apache_get_modules();
//var_dump($arrModules);
$boolValue = in_array('mod_rewrite', $arrModules);
if ($boolValue) {
    write("Apache - mod_rewrite module is installed: OK");
} else {
    write("Apache - mod_rewrite module is not installed: please enable mod_rewrite");
}

$boolValue = isset($_SERVER["HTTP_MOD_REWRITE"]);
if ($boolValue) {
    write("Apache - RewriteCond in .htaccess is working: OK");
} else {
    write("Apache - RewriteCond is not working: ERROR");
}

if (version_compare(PHP_VERSION, '5.4.0') >= 0) {
    write("PHP Version = " . PHP_VERSION . ": OK");
} else {
    write("PHP Version = " . PHP_VERSION . ": Too old");
}

//
// memory_limit: 512 MB
$strValue = ini_get('memory_limit');

if ((int) $strValue >= '512') {
    write("php.ini - memory_limit = $strValue: OK");
} else {
    write("php.ini - memory_limit = $strValue: Not enough memory (min. 512M)");
}

// post_max_size: 8 MB
$strValue = ini_get('post_max_size');
if ((int) $strValue >= '8') {
    write("php.ini - post_max_size = $strValue: OK");
} else {
    write("php.ini - post_max_size = $strValue: Not enough (min. 8M)");
}

// upload_max_filesize: 15 MB
$strValue = ini_get('upload_max_filesize');
if ((int) $strValue >= '15') {
    write("php.ini - upload_max_filesize = $strValue: OK");
} else {
    write("php.ini - upload_max_filesize = $strValue: Not enough (min. 15M)");
}

// date.timezone = Europe/Zurich
$strValue = date_default_timezone_get();
if ($strValue == 'Europe/Zurich') {
    write("php.ini - Default timezone = $strValue: OK");
} else {
    write("php.ini - Default timezone = $strValue: Invalid (Must be: Europe/Zurich)");
}

// check extensions
$boolValue = extension_loaded('suhosin');
if (!$boolValue) {
    write("php.ini - suhosin is not installed: OK");
} else {
    write("php.ini - suhosin is installed: please remove suhosin");
}

// session check
if (!isset($_SESSION['counter'])) {
    $_SESSION['counter'] = 0;
}
$_SESSION['counter'] ++;

if ($_SESSION['counter'] > 0) {
    write("Session: OK");
} else {
    write("Session not correct installed");
}

phpinfo();

function write($str)
{
    echo $str . "<br>\n";
}