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

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="phar.mapphar" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>Phar::mapPhar</refname>
  <refpurpose>Reads the currently executed file (a phar) and registers its manifest</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <modifier>final</modifier> <modifier>public</modifier> <modifier>static</modifier> <type>bool</type><methodname>Phar::mapPhar</methodname>
   <methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>alias</parameter><initializer>&null;</initializer></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>offset</parameter><initializer>0</initializer></methodparam>
  </methodsynopsis>

  <para>
   This static method can only be used inside a Phar archive's loader stub
   in order to initialize the phar when it is directly executed, or when
   it is included in another script.
  </para>

 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>alias</parameter></term>
     <listitem>
      <para>
       The alias that can be used in <literal>phar://</literal> URLs to
       refer to this archive, rather than its full path.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>offset</parameter></term>
     <listitem>
      <para>
       Unused variable, here for compatibility with PEAR's PHP_Archive.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   <classname>PharException</classname> is thrown if not called directly within PHP execution,
   if no __HALT_COMPILER(); token is found in the current source file, or if
   the file cannot be opened for reading.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>A <function>Phar::mapPhar</function> example</title>
    <para>
     mapPhar should be used only inside a phar's loader stub.  Use
     loadPhar to load an external phar into memory.
    </para>
    <para>
     Here is a sample Phar loader stub that uses mapPhar.
    </para>
    <programlisting role="php">
<![CDATA[
<?php
function __autoload($class)
{
    include 'phar://me.phar/' . str_replace('_', '/', $class) . '.php';
}
try {
    Phar::mapPhar('me.phar');
    include 'phar://me.phar/startup.php';
} catch (PharException $e) {
    echo $e->getMessage();
    die('Cannot initialize Phar');
}
__HALT_COMPILER();
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>Phar::loadPhar</function></member>
   </simplelist>
  </para>
 </refsect1>


</refentry>
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