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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.strval" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>strval</refname>
<refpurpose>Get string value of a variable</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>strval</methodname>
<methodparam><type>mixed</type><parameter>value</parameter></methodparam>
</methodsynopsis>
<simpara>
Get the string value of a variable.
See the documentation on <type>string</type> for more information
on converting to string.
</simpara>
<simpara>
This function performs no formatting on the returned value. If you
are looking for a way to format a numeric value as a string, please
see <function>sprintf</function> or <function>number_format</function>.
</simpara>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>value</parameter></term>
<listitem>
<para>
The variable that is being converted to a <type>string</type>.
</para>
<para>
<parameter>value</parameter> may be any scalar type, <type>null</type>,
or an <type>object</type> that implements the <link linkend="object.tostring">__toString()</link>
method. You cannot use <function>strval</function> on arrays or on
objects that do not implement the
<link linkend="object.tostring">__toString()</link> method.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
The <type>string</type> value of <parameter>value</parameter>.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>
<function>strval</function> example using PHP magic
<link linkend="object.tostring">__toString()</link> method.
</title>
<programlisting role="php">
<![CDATA[
<?php
class StrValTest
{
public function __toString()
{
return __CLASS__;
}
}
// Prints 'StrValTest'
echo strval(new StrValTest);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>boolval</function></member>
<member><function>floatval</function></member>
<member><function>intval</function></member>
<member><function>settype</function></member>
<member><function>sprintf</function></member>
<member><function>number_format</function></member>
<member><link linkend="language.types.type-juggling">Type juggling</link></member>
<member><link linkend="object.tostring">__toString()</link></member>
</simplelist>
</para>
</refsect1>
</refentry>
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