309 Zeilen
10 KiB
PHP
309 Zeilen
10 KiB
PHP
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Config
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id$
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*/
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/**
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* @see Zend_Config
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*/
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require_once 'Zend/Config.php';
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/**
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* @category Zend
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* @package Zend_Config
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* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Config_Ini extends Zend_Config
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{
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/**
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* String that separates nesting levels of configuration data identifiers
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*
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* @var string
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*/
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protected $_nestSeparator = '.';
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/**
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* String that separates the parent section name
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*
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* @var string
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*/
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protected $_sectionSeparator = ':';
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/**
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* Whether to skip extends or not
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*
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* @var boolean
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*/
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protected $_skipExtends = false;
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/**
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* Loads the section $section from the config file $filename for
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* access facilitated by nested object properties.
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*
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* If the section name contains a ":" then the section name to the right
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* is loaded and included into the properties. Note that the keys in
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* this $section will override any keys of the same
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* name in the sections that have been included via ":".
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*
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* If the $section is null, then all sections in the ini file are loaded.
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*
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* If any key includes a ".", then this will act as a separator to
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* create a sub-property.
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*
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* example ini file:
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* [all]
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* db.connection = database
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* hostname = live
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*
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* [staging : all]
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* hostname = staging
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*
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* after calling $data = new Zend_Config_Ini($file, 'staging'); then
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* $data->hostname === "staging"
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* $data->db->connection === "database"
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*
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* The $options parameter may be provided as either a boolean or an array.
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* If provided as a boolean, this sets the $allowModifications option of
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* Zend_Config. If provided as an array, there are two configuration
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* directives that may be set. For example:
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*
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* $options = array(
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* 'allowModifications' => false,
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* 'nestSeparator' => '->'
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* );
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*
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* @param string $filename
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* @param string|null $section
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* @param boolean|array $options
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* @throws Zend_Config_Exception
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* @return void
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*/
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public function __construct($filename, $section = null, $options = false)
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{
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if (empty($filename)) {
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/**
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* @see Zend_Config_Exception
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*/
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require_once 'Zend/Config/Exception.php';
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throw new Zend_Config_Exception('Filename is not set');
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}
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$allowModifications = false;
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if (is_bool($options)) {
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$allowModifications = $options;
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} elseif (is_array($options)) {
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if (isset($options['allowModifications'])) {
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$allowModifications = (bool) $options['allowModifications'];
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}
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if (isset($options['nestSeparator'])) {
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$this->_nestSeparator = (string) $options['nestSeparator'];
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}
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if (isset($options['skipExtends'])) {
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$this->_skipExtends = (bool) $options['skipExtends'];
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}
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}
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$iniArray = $this->_loadIniFile($filename);
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if (null === $section) {
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// Load entire file
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$dataArray = array();
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foreach ($iniArray as $sectionName => $sectionData) {
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if(!is_array($sectionData)) {
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$dataArray = $this->_arrayMergeRecursive($dataArray, $this->_processKey(array(), $sectionName, $sectionData));
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} else {
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$dataArray[$sectionName] = $this->_processSection($iniArray, $sectionName);
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}
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}
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parent::__construct($dataArray, $allowModifications);
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} else {
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// Load one or more sections
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if (!is_array($section)) {
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$section = array($section);
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}
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$dataArray = array();
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foreach ($section as $sectionName) {
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if (!isset($iniArray[$sectionName])) {
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/**
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* @see Zend_Config_Exception
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*/
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require_once 'Zend/Config/Exception.php';
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throw new Zend_Config_Exception("Section '$sectionName' cannot be found in $filename");
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}
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$dataArray = $this->_arrayMergeRecursive($this->_processSection($iniArray, $sectionName), $dataArray);
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}
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parent::__construct($dataArray, $allowModifications);
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}
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$this->_loadedSection = $section;
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}
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/**
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* Load the INI file from disk using parse_ini_file(). Use a private error
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* handler to convert any loading errors into a Zend_Config_Exception
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*
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* @param string $filename
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* @throws Zend_Config_Exception
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* @return array
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*/
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protected function _parseIniFile($filename)
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{
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set_error_handler(array($this, '_loadFileErrorHandler'));
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$iniArray = parse_ini_file($filename, true); // Warnings and errors are suppressed
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restore_error_handler();
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// Check if there was a error while loading file
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if ($this->_loadFileErrorStr !== null) {
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/**
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* @see Zend_Config_Exception
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*/
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require_once 'Zend/Config/Exception.php';
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throw new Zend_Config_Exception($this->_loadFileErrorStr);
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}
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return $iniArray;
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}
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/**
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* Load the ini file and preprocess the section separator (':' in the
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* section name (that is used for section extension) so that the resultant
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* array has the correct section names and the extension information is
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* stored in a sub-key called ';extends'. We use ';extends' as this can
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* never be a valid key name in an INI file that has been loaded using
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* parse_ini_file().
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*
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* @param string $filename
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* @throws Zend_Config_Exception
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* @return array
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*/
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protected function _loadIniFile($filename)
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{
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$loaded = $this->_parseIniFile($filename);
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$iniArray = array();
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foreach ($loaded as $key => $data)
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{
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$pieces = explode($this->_sectionSeparator, $key);
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$thisSection = trim($pieces[0]);
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switch (count($pieces)) {
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case 1:
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$iniArray[$thisSection] = $data;
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break;
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case 2:
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$extendedSection = trim($pieces[1]);
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$iniArray[$thisSection] = array_merge(array(';extends'=>$extendedSection), $data);
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break;
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default:
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/**
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* @see Zend_Config_Exception
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*/
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require_once 'Zend/Config/Exception.php';
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throw new Zend_Config_Exception("Section '$thisSection' may not extend multiple sections in $filename");
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}
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}
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return $iniArray;
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}
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/**
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* Process each element in the section and handle the ";extends" inheritance
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* key. Passes control to _processKey() to handle the nest separator
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* sub-property syntax that may be used within the key name.
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*
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* @param array $iniArray
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* @param string $section
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* @param array $config
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* @throws Zend_Config_Exception
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* @return array
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*/
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protected function _processSection($iniArray, $section, $config = array())
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{
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$thisSection = $iniArray[$section];
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foreach ($thisSection as $key => $value) {
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if (strtolower($key) == ';extends') {
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if (isset($iniArray[$value])) {
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$this->_assertValidExtend($section, $value);
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if (!$this->_skipExtends) {
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$config = $this->_processSection($iniArray, $value, $config);
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}
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} else {
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/**
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* @see Zend_Config_Exception
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*/
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require_once 'Zend/Config/Exception.php';
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throw new Zend_Config_Exception("Parent section '$section' cannot be found");
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}
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} else {
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$config = $this->_processKey($config, $key, $value);
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}
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}
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return $config;
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}
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/**
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* Assign the key's value to the property list. Handles the
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* nest separator for sub-properties.
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*
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* @param array $config
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* @param string $key
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* @param string $value
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* @throws Zend_Config_Exception
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* @return array
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*/
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protected function _processKey($config, $key, $value)
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{
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if (strpos($key, $this->_nestSeparator) !== false) {
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$pieces = explode($this->_nestSeparator, $key, 2);
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if (strlen($pieces[0]) && strlen($pieces[1])) {
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if (!isset($config[$pieces[0]])) {
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if ($pieces[0] === '0' && !empty($config)) {
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// convert the current values in $config into an array
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$config = array($pieces[0] => $config);
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} else {
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$config[$pieces[0]] = array();
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}
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} elseif (!is_array($config[$pieces[0]])) {
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/**
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* @see Zend_Config_Exception
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*/
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require_once 'Zend/Config/Exception.php';
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throw new Zend_Config_Exception("Cannot create sub-key for '{$pieces[0]}' as key already exists");
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}
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$config[$pieces[0]] = $this->_processKey($config[$pieces[0]], $pieces[1], $value);
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} else {
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/**
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* @see Zend_Config_Exception
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*/
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require_once 'Zend/Config/Exception.php';
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throw new Zend_Config_Exception("Invalid key '$key'");
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}
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} else {
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$config[$key] = $value;
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}
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return $config;
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}
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}
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