diff --git a/ext/standard/tests/strings/bug72823.phpt b/ext/standard/tests/strings/bug72823.phpt
new file mode 100644
index 00000000000..d0aaf0fd35d
--- /dev/null
+++ b/ext/standard/tests/strings/bug72823.phpt
@@ -0,0 +1,12 @@
+--TEST--
+Bug #72823 (strtr out-of-bound access)
+--FILE--
+<?php
+var_dump(
+    strtr(11, array('aaa' => 'bbb'))
+);
+?>
+===DONE===
+--EXPECT--
+string(2) "11"
+===DONE===