diff --git a/admin/environment.xml b/admin/environment.xml
index 8b982f2c126..8c35fb6799b 100644
--- a/admin/environment.xml
+++ b/admin/environment.xml
@@ -1444,6 +1444,7 @@
       <VENDOR name="oracle" version="10.2" />
     </DATABASE>
     <PHP version="5.4.4" level="required">
+      <RESTRICT function="restrict_php_version_71" message="unsupportedphpversion71" />
     </PHP>
     <PCREUNICODE level="optional">
       <FEEDBACK>
@@ -1587,6 +1588,7 @@
       <VENDOR name="oracle" version="10.2" />
     </DATABASE>
     <PHP version="5.4.4" level="required">
+      <RESTRICT function="restrict_php_version_71" message="unsupportedphpversion71" />
     </PHP>
     <PCREUNICODE level="optional">
       <FEEDBACK>
diff --git a/lang/en/admin.php b/lang/en/admin.php
index a81d721c744..accbbec50d9 100644
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -1138,6 +1138,7 @@ $string['unsupported'] = 'Unsupported';
 $string['unsupporteddbstorageengine'] = 'The database storage engine being used is no longer supported.';
 $string['unsupporteddbtablerowformat'] = 'Your database has tables using Antelope as the file format. You are recommended to convert the tables to the Barracuda file format. See the documentation <a href="https://docs.moodle.org/en/cli">Administration via command line</a> for details of a tool for converting InnoDB tables to Barracuda.';
 $string['unsupportedphpversion7'] = 'PHP version 7 is not supported.';
+$string['unsupportedphpversion71'] = 'PHP version 7.1 is not supported.';
 $string['unsuspenduser'] = 'Activate user account';
 $string['updateaccounts'] = 'Update existing accounts';
 $string['updatecomponent'] = 'Update component';
diff --git a/lib/environmentlib.php b/lib/environmentlib.php
index 13de804bebc..f83e69de92f 100644
--- a/lib/environmentlib.php
+++ b/lib/environmentlib.php
@@ -1582,3 +1582,14 @@ function restrict_php_version(&$result, $version) {
         return true;
     }
 }
+
+/**
+ * Check if the current PHP version is greater than or equal to
+ * PHP version 7.1.
+ *
+ * @param object $result an environment_results instance
+ * @return bool result of version check
+ */
+function restrict_php_version_71(&$result) {
+    return restrict_php_version($result, '7.1');
+}