mirror of
https://github.com/sigmasternchen/php-doc-en
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1a28eb6e50
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@328469 c90b9560-bf6c-de11-be94-00142212c4b1
122 lines
3.2 KiB
XML
122 lines
3.2 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.strval" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>strval</refname>
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<refpurpose>Get string value of a variable</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>string</type><methodname>strval</methodname>
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<methodparam><type>mixed</type><parameter>var</parameter></methodparam>
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</methodsynopsis>
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<simpara>
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Get the string value of a variable.
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See the documentation on <type>string</type> for more information
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on converting to string.
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</simpara>
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<simpara>
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This function performs no formatting on the returned value. If you
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are looking for a way to format a numeric value as a string, please
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see <function>sprintf</function> or <function>number_format</function>.
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</simpara>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>var</parameter></term>
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<listitem>
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<para>
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The variable that is being converted to a <type>string</type>.
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</para>
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<para>
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<parameter>var</parameter> may be any scalar type or an object that
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implements the <link linkend="object.tostring">__toString()</link>
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method. You cannot use <function>strval</function> on arrays or on
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objects that do not implement the
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<link linkend="object.tostring">__toString()</link> method.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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The <type>string</type> value of <parameter>var</parameter>.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>
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<function>strval</function> example using PHP 5's magic
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<link linkend="object.tostring">__toString()</link> method.
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</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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class StrValTest
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{
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public function __toString()
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{
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return __CLASS__;
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}
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}
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// Prints 'StrValTest'
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echo strval(new StrValTest);
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>boolval</function></member>
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<member><function>floatval</function></member>
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<member><function>intval</function></member>
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<member><function>settype</function></member>
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<member><function>sprintf</function></member>
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<member><function>number_format</function></member>
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<member><link linkend="language.types.type-juggling">Type juggling</link></member>
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<member><link linkend="object.tostring">__toString()</link></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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