mirror of
https://github.com/sigmasternchen/php-doc-en
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f45d3cb110
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@251096 c90b9560-bf6c-de11-be94-00142212c4b1
106 lines
2.6 KiB
XML
106 lines
2.6 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.2 $ -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="phar.offsetexists">
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<refnamediv>
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<refname>Phar::offsetExists</refname>
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<refpurpose>determines whether a file exists in the phar</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>bool</type><methodname>Phar::offsetExists</methodname>
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<methodparam><type>string</type><parameter>offset</parameter></methodparam>
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</methodsynopsis>
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<para>
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This is an implementation of the <interfacename>ArrayAccess</interfacename> interface allowing
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direct manipulation of the contents of a Phar archive using
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array access brackets.
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</para>
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<para>
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offsetExists() is called whenever <function>isset</function> is called.
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</para>
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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>offset</parameter></term>
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<listitem>
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<para>
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The filename (relative path) to look for in a Phar.
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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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Returns &true; if the file exists within the phar, or &false; if not.
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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>A <function>Phar::offsetExists</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$p = new Phar(dirname(__FILE__) . '/my.phar', 0, 'my.phar');
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$p['firstfile.txt'] = 'first file';
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$p['secondfile.txt'] = 'second file';
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// the next set of lines call offsetExists() indirectly
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var_dump(isset($p['firstfile.txt']));
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var_dump(isset($p['nothere.txt']));
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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bool(true)
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bool(false)
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]]>
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</screen>
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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>Phar::offsetGet</function></member>
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<member><function>Phar::offsetSet</function></member>
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<member><function>Phar::offsetUnset</function></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:"../../../../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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