diff --git a/reference/var/functions/is-numeric.xml b/reference/var/functions/is-numeric.xml
index 380bcb85ac..04068c885d 100644
--- a/reference/var/functions/is-numeric.xml
+++ b/reference/var/functions/is-numeric.xml
@@ -15,11 +15,12 @@
    <methodparam><type>mixed</type><parameter>var</parameter></methodparam>
   </methodsynopsis>
   <para>
-   Finds whether the given variable is numeric. Numeric strings consist of
-   optional sign, any number of digits, optional decimal part and optional
-   exponential part. Thus <literal>+0123.45e6</literal> is a valid numeric
-   value. Hexadecimal notation (<literal>0xFF</literal>) is allowed too but
-   only without sign, decimal and exponential part.
+   Finds whether the given variable is numeric. Numeric strings consist of optional
+   sign, any number of digits, optional decimal part and optional exponential part.
+   Thus <literal>+0123.45e6</literal> is a valid numeric value. Hexadecimal (e.g.
+   <literal>0xf4c3b00c</literal>), Binary (e.g. <literal>0b10100111001</literal>),
+   Octal (e.g. <literal>0777</literal>) notation is allowed too but only without
+   sign, decimal and exponential part.
   </para>
  </refsect1>
 
@@ -58,7 +59,10 @@
 $tests = array(
     "42", 
     1337, 
-    "1e4", 
+    0x539, 
+    02471, 
+    0b10100111001, 
+    1337e0, 
     "not numeric", 
     array(), 
     9.1
@@ -79,7 +83,10 @@ foreach ($tests as $element) {
 <![CDATA[
 '42' is numeric
 '1337' is numeric
-'1e4' is numeric
+'1337' is numeric
+'1337' is numeric
+'1337' is numeric
+'1337' is numeric
 'not numeric' is NOT numeric
 'Array' is NOT numeric
 '9.1' is numeric