From d42c3dc18652ad8044015903282b90fc198ff39a Mon Sep 17 00:00:00 2001
From: Andrew Ruthven <andrew@etc.gen.nz>
Date: Sat, 20 Jan 2024 15:18:37 +1300
Subject: [PATCH] Add PHP version check to setup.php

---
 htdocs/setup.php  | 14 ++++++++++++++
 inc/always.php.in |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/htdocs/setup.php b/htdocs/setup.php
index 3c465596..ff4f9ffe 100644
--- a/htdocs/setup.php
+++ b/htdocs/setup.php
@@ -286,6 +286,19 @@ function check_davical_version() {
   return $result;
 }
 
+function check_php_version() {
+  global $c;
+
+  $result = new CheckResult(version_compare(phpversion(), $c->minimum_php_version, '>='));
+  if ( ! $result->getOK() ) {
+    $result->setDescription( sprintf(i18n('Minimum: %s, Currently: %s'), $c->minimum_php_version, phpversion()) );
+    $result->setClass('dep_fail');
+  } else {
+    $result->setDescription( sprintf(i18n('Passed: %s'), phpversion() . ' >= ' . $c->minimum_php_version) );
+  }
+  return $result;
+
+}
 
 function check_awl_version() {
   global $c;
@@ -337,6 +350,7 @@ function build_dependencies_table( ) {
 
   $dependencies = array(
     translate('Current DAViCal version ')         => 'check_davical_version',
+    translate('PHP version ')                     => 'check_php_version',
     translate('AWL Library version ')             => 'check_awl_version',
     translate('PHP not using Apache Filter mode') => 'check_real_php',
     translate('PHP PDO module available')         => 'check_pdo',
diff --git a/inc/always.php.in b/inc/always.php.in
index 0d8ffed0..015cca8c 100644
--- a/inc/always.php.in
+++ b/inc/always.php.in
@@ -308,6 +308,9 @@ if ( isset($c->version_string) && preg_match( '/(\d+)\.(\d+)\.(\d+)(.*)/', $c->v
   @header( sprintf('Server: %d.%d', $c->code_major, $c->code_minor) );
 }
 
+// What is our minimum supported version of PHP?
+$c->minimum_php_version = '5.4.0';
+
 /**
 * Force the domain name to what was in the configuration file
 */