php-doc-en/reference/phar/Phar/offsetGet.xml

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<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="phar.offsetget" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>Phar::offsetGet</refname>
<refpurpose>Gets a <classname>PharFileInfo</classname> object for a specific file</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>SplFileInfo</type><methodname>Phar::offsetGet</methodname>
<methodparam><type>string</type><parameter>localName</parameter></methodparam>
</methodsynopsis>
<para>
This is an implementation of the <interfacename>ArrayAccess</interfacename>
interface allowing direct manipulation of the contents of a Phar archive using
array access brackets. <methodname>Phar::offsetGet</methodname> is used
for retrieving files from a Phar archive.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>localName</parameter></term>
<listitem>
<para>
The filename (relative path) to look for in a Phar.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
A <classname>PharFileInfo</classname> object is returned that can be used to
iterate over a file's contents or to retrieve information about the current file.
</para>
</refsect1>
<refsect1 role="errors">
&reftitle.errors;
<para>
This method throws <classname>BadMethodCallException</classname> if the file
does not exist in the Phar archive.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>Phar::offsetGet</function> example</title>
<para>
As with all classes that implement the <classname>ArrayAccess</classname>
interface, <methodname>Phar::offsetGet</methodname> is automatically
called when using the <literal>[]</literal> angle bracket operator.
</para>
<programlisting role="php">
<![CDATA[
<?php
$p = new Phar(dirname(__FILE__) . '/myphar.phar', 0, 'myphar.phar');
$p['exists.txt'] = "file exists\n";
try {
// automatically calls offsetGet()
echo $p['exists.txt'];
echo $p['doesnotexist.txt'];
} catch (BadMethodCallException $e) {
echo $e;
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
file exists
Entry doesnotexist.txt does not exist
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>Phar::offsetExists</function></member>
<member><function>Phar::offsetSet</function></member>
<member><function>Phar::offsetUnset</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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