php-doc-en/reference/var/functions/floatval.xml
2005-01-14 02:29:17 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.5 $ -->
<refentry id="function.floatval">
<refnamediv>
<refname>floatval</refname>
<refpurpose>Get float value of a variable</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>float</type><methodname>floatval</methodname>
<methodparam><type>mixed</type><parameter>var</parameter></methodparam>
</methodsynopsis>
<para>
Gets the <type>float</type> value of <parameter>var</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>var</parameter></term>
<listitem>
<para>
May be any scalar type. You cannot use <function>floatval</function>
on arrays or objects.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The float value of the given variable.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>floatval</function> Example</title>
<programlisting role="php">
<![CDATA[
<?php
$var = '122.34343The';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 122.34343
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>intval</function></member>
<member><function>strval</function></member>
<member><function>settype</function></member>
<member><link linkend="language.types.type-juggling">Type juggling</link></member>
</simplelist>
</para>
</refsect1>
</refentry>
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