diff --git a/functions/array.xml b/functions/array.xml
index 0265552e77..f5c011caa5 100644
--- a/functions/array.xml
+++ b/functions/array.xml
@@ -1753,6 +1753,7 @@ blue, large, sphere, medium
       <funcdef>bool in_array</funcdef>
       <paramdef>mixed <parameter>needle</parameter></paramdef>
       <paramdef>array <parameter>haystack</parameter></paramdef>
+      <paramdef>bool <parameter>strict</parameter></paramdef>
      </funcprototype>
     </funcsynopsis>
     <para>
@@ -1760,6 +1761,12 @@ blue, large, sphere, medium
      <parameter>needle</parameter> and returns true if it is found in
      the array, false otherwise.
     </para>
+    <para
+     If the third parameter <parameter>strict</parameter> is set to
+     <literal>TRUE</literal> then the <function>in_array</function>
+     will also check the types of the <parameter>needle</parameter>
+     in the <parameter>haystack</parameter>.
+    </para>
     <para>
      <example>
       <title><function>In_array</function> example</title>
@@ -1771,6 +1778,25 @@ if (in_array ("Irix", $os)){
       </programlisting>
      </example>
     </para>
+    <para>
+     <example>
+      <title><function>In_array</function> with strict example</title>
+      <programlisting role="php">
+<?php
+$a = array('1.10', 12.4, 1.13);
+
+if (in_array('12.4', $a, true))
+    echo &quot;'12.4' found with strict check\n&quot;;
+if (in_array(1.13, $a, true))
+    echo &quot;1.13 found with strict check\n&quot;;
+?>
+
+// This will output:
+
+1.13 found with strict check
+      </programlisting>
+     </example>
+    </para>
    </refsect1>
   </refentry>