Add a sanity check in install.php, accounting for whether PHP is running. fixes #11728

git-svn-id: https://develop.svn.wordpress.org/trunk@13428 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/install.php

@@ -6,6 +6,14 @@
  * @subpackage Administration
  */
 
+// Sanity check.
+if ( false ) {
+?>
+<h1>Error: PHP is not running</h1>
+<p>WordPress requires that your web server is running PHP. Your server does not have PHP installed, or PHP is turned off.</p><div style="display:none">
+<?php
+}
+
 /**
  * We are installing WordPress.
  *