php-doc-en/reference/yaf/yaf-config-ini.xml

<?xml version="1.0" encoding="utf-8"?>
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<phpdoc:classref xml:id="class.yaf-config-ini" xmlns:phpdoc="http://php.net/ns/phpdoc" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xi="http://www.w3.org/2001/XInclude">

 <title>The Yaf_Config_Ini class</title>
 <titleabbrev>Yaf_Config_Ini</titleabbrev>

 <partintro>

<!-- {{{ Yaf_Config_Ini intro -->
  <section xml:id="yaf-config-ini.intro">
   &reftitle.intro;
   <para>
   Yaf_Config_Ini enables developers to store configuration data in a
   familiar INI format and read them in the application by using nested object
   property syntax. The INI format is specialized to provide both the ability
   to have a hierarchy of configuration data keys and inheritance between
   configuration data sections. Configuration data hierarchies are supported
   by separating the keys with the dot or period character ("."). A section
   may extend or inherit from another section by following the section name
   with a colon character (":") and the name of the section from which data are
   to be inherited.    
  <note>
   <para>
   Yaf_Config_Ini utilizes the » parse_ini_file() PHP function. Please review
   this documentation to be aware of its specific behaviors, which propagate
   to Yaf_Config_Ini, such as how the special values of "&true;", "&false;",
   "yes", "no", and "&null;" are handled. 
   </para>
  </note>
  </para>
  </section>
<!-- }}} -->

  <section xml:id="yaf-config-ini.synopsis">
   &reftitle.classsynopsis;

<!-- {{{ Synopsis -->
   <classsynopsis>
    <ooclass><classname>Yaf_Config_Ini</classname></ooclass>

<!-- {{{ Class synopsis -->
    <classsynopsisinfo>
     <ooclass>
      <classname>Yaf_Config_Ini</classname>
     </ooclass>
     
     <ooclass>
      <modifier>extends</modifier>
      <classname>Yaf_Config_Abstract</classname>
     </ooclass>
     
     <oointerface>
      <interfacename>Iterator</interfacename>
     </oointerface>

     <oointerface>
      <interfacename>ArrayAccess</interfacename>
     </oointerface>

     <oointerface>
      <interfacename>Countable</interfacename>
     </oointerface>
    </classsynopsisinfo>
<!-- }}} -->
    <classsynopsisinfo role="comment">&Properties;</classsynopsisinfo>

    
    <classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.yaf-config-ini')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[1])" />
    
    <classsynopsisinfo role="comment">&InheritedMethods;</classsynopsisinfo>
    <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.yaf-config-abstract')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[1])" />

   </classsynopsis>
<!-- }}} -->

  </section>

  
<!-- {{{ Yaf_Config_Ini properties -->
  <section xml:id="yaf-config-ini.props">
   &reftitle.properties;
   <variablelist>
    <varlistentry xml:id="yaf-config-ini.props.config">
     <term><varname>_config</varname></term>
     <listitem>
      <para></para>
     </listitem>
    </varlistentry>
    <varlistentry xml:id="yaf-config-ini.props.readonly">
     <term><varname>_readonly</varname></term>
     <listitem>
      <para></para>
     </listitem>
    </varlistentry>
   </variablelist>
  </section>
<!-- }}} -->

 <section role="examples">
  &reftitle.examples;
  <example>
   <title><function>Yaf_Config_Ini</function>example</title>
   <para>
    This example illustrates a basic use of Yaf_Config_Ini for loading
    configuration data from an INI file. In this example there are
    configuration data for both a production system and for a staging system.
    Because the staging system configuration data are very similar to those
    for production, the staging section inherits from the production section.
    In this case, the decision is arbitrary and could have been written
    conversely, with the production section inheriting from the staging
    section, though this may not be the case for more complex situations.
    Suppose, then, that the following configuration data are contained in
    /path/to/config.ini:
   </para>
   <programlisting role="ini">
<![CDATA[
; Production site configuration data
[production]
webhost                  = www.example.com
database.adapter         = pdo_mysql
database.params.host     = db.example.com
database.params.username = dbuser
database.params.password = secret
database.params.dbname   = dbname
 
; Staging site configuration data inherits from production and
; overrides values as necessary
[staging : production]
database.params.host     = dev.example.com
database.params.username = devuser
database.params.password = devsecret
]]>
   </programlisting>
   <programlisting role="php">
<![CDATA[
<?php
$config = new Yaf_Config_Ini('/path/to/config.ini', 'staging');
 
var_dump($config->database->params->host); 
var_dump($config->database->params->dbname);
var_dump($config->get("database.params.username"));
?>
]]>
   </programlisting>
   &example.outputs.similar;
   <screen>
<![CDATA[
string(15) "dev.example.com"
string(6) "dbname"
string(7) "devuser
]]>
   </screen>
  </example>
  </section>

 </partintro>

 &reference.yaf.entities.yaf-config-ini;

</phpdoc:classref>

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