X-Git-Url: https://vcs.fsf.org/?a=blobdiff_plain;f=install%2Findex.php;h=2367eab45b46a1657f2d995e857f3dac92c19be2;hb=1be29aad0dfca44b65ccd9717956ca943c60d28a;hp=166bd2a8ef015349b4227796109fee34f885ef87;hpb=8ba0b069f655a8202621984369d5a0219956d0d5;p=civicrm-core.git

diff --git a/install/index.php b/install/index.php
index 166bd2a8ef..2367eab45b 100644
--- a/install/index.php
+++ b/install/index.php
@@ -727,6 +727,13 @@ class InstallRequirements {
       ts("JSON support not included in PHP."),
     ));
 
+    // check for Multibyte support such as mb_substr. Required for proper handling of Multilingual setups.
+    $this->requireFunction('mb_substr', array(
+      ts("PHP Configuration"),
+      ts("Multibyte support"),
+      ts("Multibyte support not enabled in PHP."),
+    ));
+
     // Check for xcache_isset and emit warning if exists
     $this->checkXCache(array(
       ts("PHP Configuration"),