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  <refentry xml:id="function.is-float" xmlns="http://docbook.org/ns/docbook">
   <refnamediv>
    <refname>is_float</refname>
    <refpurpose>Finds whether the type of a variable is float</refpurpose>
   </refnamediv>
   <refsect1 role="description">
    &reftitle.description;
     <methodsynopsis>
      <type>bool</type><methodname>is_float</methodname>
      <methodparam><type>mixed</type><parameter>var</parameter></methodparam>
     </methodsynopsis>
    <para>
     Finds whether the type of the given variable is float.
    </para>
    <note>
     <para>
      To test if a variable is a number or a numeric string (such as form
      input, which is always a string), you must use
      <function>is_numeric</function>.
     </para>
    </note>
   </refsect1>
   <refsect1 role="parameters">
    &reftitle.parameters;
    <para>
     <variablelist>
      <varlistentry>
       <term><parameter>var</parameter></term>
       <listitem>
        <para>
         The variable being evaluated.
        </para>
       </listitem>
      </varlistentry>
     </variablelist>
    </para>
   </refsect1>
   <refsect1 role="returnvalues">
    &reftitle.returnvalues;
    <para>
     Returns &true; if <parameter>var</parameter> is a <type>float</type>, 
     &false; otherwise.
    </para>
   </refsect1>
   <refsect1 role="examples">
     &reftitle.examples;
     <para>
   <example>
    <title><function>is_float</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
if(is_float(27.25)) {
 echo "is float\n";
}else {
 echo "is not float\n";
}
var_dump(is_float('abc'));
var_dump(is_float(23));
var_dump(is_float(23.5));
var_dump(is_float(1e7));  //Scientific Notation
var_dump(is_float(true));
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
is float
bool(false)
bool(false)
bool(true)
bool(true)
bool(false)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

   <refsect1 role="seealso">
    &reftitle.seealso;
    <para>
     <simplelist>
      <member><function>is_bool</function></member>
      <member><function>is_int</function></member>
      <member><function>is_numeric</function></member>
      <member><function>is_string</function></member>
      <member><function>is_array</function></member>
      <member><function>is_object</function></member>
     </simplelist>
    </para>
   </refsect1>
  </refentry>

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