From bdcf5717de8c9d48d9c147bf9465a71f778237b7 Mon Sep 17 00:00:00 2001
From: John Blackbourn <johnbillion@git.wordpress.org>
Date: Wed, 23 Sep 2015 21:57:26 +0000
Subject: [PATCH] Send a 500 HTTP response code when the server's PHP or MySQL
 checks fail.

Fixes #33689
Props jeichorn

Built from https://develop.svn.wordpress.org/trunk@34462


git-svn-id: http://core.svn.wordpress.org/trunk@34426 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/load.php    | 14 +++++++++++++-
 wp-includes/version.php |  2 +-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/wp-includes/load.php b/wp-includes/load.php
index 0b34456ab0..560511a953 100644
--- a/wp-includes/load.php
+++ b/wp-includes/load.php
@@ -111,13 +111,25 @@ function wp_check_php_mysql_versions() {
 
 	if ( version_compare( $required_php_version, $php_version, '>' ) ) {
 		wp_load_translations_early();
+
+		$protocol = $_SERVER['SERVER_PROTOCOL'];
+		if ( 'HTTP/1.1' !== $protocol && 'HTTP/1.0' !== $protocol ) {
+			$protocol = 'HTTP/1.0';
+		}
+		header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
 		header( 'Content-Type: text/html; charset=utf-8' );
 		die( sprintf( __( 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.' ), $php_version, $wp_version, $required_php_version ) );
 	}
 
 	if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) {
 		wp_load_translations_early();
-		 header( 'Content-Type: text/html; charset=utf-8' );
+
+		$protocol = $_SERVER['SERVER_PROTOCOL'];
+		if ( 'HTTP/1.1' !== $protocol && 'HTTP/1.0' !== $protocol ) {
+			$protocol = 'HTTP/1.0';
+		}
+		header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
+		header( 'Content-Type: text/html; charset=utf-8' );
 		die( __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ) );
 	}
 }
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 31a921da17..4ee084d7d4 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-34461';
+$wp_version = '4.4-alpha-34462';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.