diff --git a/reference/strings/functions/substr-compare.xml b/reference/strings/functions/substr-compare.xml
index c99d40da58..1ea70a8a0d 100644
--- a/reference/strings/functions/substr-compare.xml
+++ b/reference/strings/functions/substr-compare.xml
@@ -84,7 +84,7 @@
    0 if it is greater than <parameter>str</parameter>, and 0 if they are equal.
    If <parameter>offset</parameter> is equal to or greater than the length of
    <parameter>main_str</parameter>, or the <parameter>length</parameter> is
-   set and is less than 1 (prior to PHP 5.6),
+   set and is less than 1 (prior to PHP 5.5.11),
    <function>substr_compare</function> prints a warning and returns
    &false;.
   </para>
@@ -103,7 +103,7 @@
      </thead>
      <tbody>
       <row>
-       <entry>5.6.0</entry>
+       <entry>5.5.11</entry>
        <entry>
         <parameter>length</parameter> may now be <literal>0</literal>.
        </entry>