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 *
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 *
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 * PHP Version 5
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 * PHP Version 5
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 *
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 *
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 * @category  PHP
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 * @category  PHP
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 * @package   Framework
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 * @package   Framework
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 * @author    Jean-Pascal MILCENT <jpm@tela-botanica.org>
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 * @author	Jean-Pascal MILCENT <jpm@tela-botanica.org>
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 * @copyright 2009 Tela-Botanica
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 * @copyright 2009 Tela-Botanica
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 * @license   GPL-v3 et CECILL-v2
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 * @license   GPL-v3 et CECILL-v2
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 * @version   SVN: <svn_id>
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 * @version   SVN: <svn_id>
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 * @link      /doc/framework/
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 * @link	  /doc/framework/
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 */
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 */
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class Config {
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class Config {
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		$chemin_config_appli_contextuel .= sprintf(self::$parametres['fw_fichier_config'], '_'.$contexte);
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		$chemin_config_appli_contextuel .= sprintf(self::$parametres['fw_fichier_config'], '_'.$contexte);
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		self::parserFichierIni($chemin_config_appli_contextuel);
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		self::parserFichierIni($chemin_config_appli_contextuel);
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	}
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	}
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	private static function parserFichierIni($fichier_ini) {
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	private static function parserFichierIni($fichier_ini) {
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    	$retour = false;
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		$retour = false;
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		if (file_exists($fichier_ini)) {
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		if (file_exists($fichier_ini)) {
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			$ini = parse_ini_file($fichier_ini, true);
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			$ini = parse_ini_file($fichier_ini, true);
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			$ini = self::analyserTableauIni($ini);
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			$ini = self::analyserTableauIni($ini);
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			self::fusionner($ini);
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			self::fusionner($ini);
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	    	$retour = true;
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			$retour = true;
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    	}
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		}
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    	return $retour;
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		return $retour;
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	}
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	}
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	private static function fusionner(array $ini) {
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	private static function fusionner(array $ini) {
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		if ($param === null) {
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		if ($param === null) {
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			return null;
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			return null;
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		} else {
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		} else {
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			if (strpos($param, '.') !== false) {
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			if (strpos($param, '.') !== false) {
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				$pieces = explode('.', $param, 2);
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				$pieces = explode('.', $param, 2);
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	            if (strlen($pieces[0]) && strlen($pieces[1])) {
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				if (strlen($pieces[0]) && strlen($pieces[1])) {
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	            	if (isset($config[$pieces[0]])) {
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					if (isset($config[$pieces[0]])) {
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	                   if (is_array($config[$pieces[0]])) {
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					   if (is_array($config[$pieces[0]])) {
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	                   		return self::getValeur($pieces[1], $config[$pieces[0]]);
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					   		return self::getValeur($pieces[1], $config[$pieces[0]]);
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	                   }
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					   }
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	                }
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					}
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	            }
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				}
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	    	} else {
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			} else {
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	    		if (isset($config[$param])) {
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				if (isset($config[$param])) {
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	    			return $config[$param];
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					return $config[$param];
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	    		}
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				}
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	    	}
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			}
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	    	return null;
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			return null;
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		}
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		}
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	}
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	}
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	private static function existeValeur($param, $config) {
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	private static function existeValeur($param, $config) {
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		}
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		}
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	}
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	}
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	private static function analyserTableauIni($config = array()) {
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	private static function analyserTableauIni($config = array()) {
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		foreach ($config as $cle => $valeur) {
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		foreach ($config as $cle => $valeur) {
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    		if (is_array($valeur)) {
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			if (is_array($valeur)) {
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    			$config[$cle] = self::analyserTableauIni($valeur);
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				$config[$cle] = self::analyserTableauIni($valeur);
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    		} else {
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			} else {
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				self::evaluerReferences($config, $cle);
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				self::evaluerReferences($config, $cle);
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    			self::evaluerPhp($config, $cle);
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				self::evaluerPhp($config, $cle);
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    			self::evaluerCle($config, $cle, $config[$cle]);
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				self::evaluerCle($config, $cle, $config[$cle]);
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    		}
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			}
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    	}
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		}
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		return $config;
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		return $config;
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	}
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	}
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	private static function evaluerCle(&$config, $cle, $valeur) {
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	private static function evaluerCle(&$config, $cle, $valeur) {
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		if (strpos($cle, '.') !== false) {
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		if (strpos($cle, '.') !== false) {
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			unset($config[$cle]);
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			unset($config[$cle]);
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			$pieces = explode('.', $cle, 2);
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			$pieces = explode('.', $cle, 2);
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            if (strlen($pieces[0]) && strlen($pieces[1])) {
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			if (strlen($pieces[0]) && strlen($pieces[1])) {
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                if (!isset($config[$pieces[0]])) {
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				if (!isset($config[$pieces[0]])) {
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                    if ($pieces[0] === '0' && !empty($config)) {
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					if ($pieces[0] === '0' && !empty($config)) {
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                        // convert the current values in $config into an array
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						// convert the current values in $config into an array
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                        $config = array($pieces[0] => $config);
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						$config = array($pieces[0] => $config);
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                    } else {
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					} else {
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                        $config[$pieces[0]] = array();
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						$config[$pieces[0]] = array();
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                    }
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					}
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                } elseif (!is_array($config[$pieces[0]])) {
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				} elseif (!is_array($config[$pieces[0]])) {
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                    throw new ErrorException("Ne peut pas créer de sous-clé pour '{$pieces[0]}' car la clé existe déjà");
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					throw new ErrorException("Ne peut pas créer de sous-clé pour '{$pieces[0]}' car la clé existe déjà");
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                }
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				}
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                $config[$pieces[0]] = self::evaluerCle($config[$pieces[0]], $pieces[1], $valeur);
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				$config[$pieces[0]] = self::evaluerCle($config[$pieces[0]], $pieces[1], $valeur);
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            } else {
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			} else {
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                throw new ErrorException("Clé invalide '$cle'");
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				throw new ErrorException("Clé invalide '$cle'");
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            }
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			}
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    	} else {
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		} else {
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    		$config[$cle] = $valeur;
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			$config[$cle] = $valeur;
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    	}
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		}
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    	return $config;
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		return $config;
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	}
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	}
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	private static function evaluerReferences(&$config, $cle) {
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	private static function evaluerReferences(&$config, $cle) {
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		if (preg_match_all('/{ref:([A-Za-z0-9_-]+)}/', $config[$cle], $correspondances,  PREG_SET_ORDER)) {
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		if (preg_match_all('/{ref:([A-Za-z0-9_-]+)}/', $config[$cle], $correspondances,  PREG_SET_ORDER)) {
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    		foreach ($correspondances as $ref) {
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			foreach ($correspondances as $ref) {
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    			$config[$cle] = str_replace($ref[0], self::getValeur($ref[1], $config), $config[$cle]);
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				$config[$cle] = str_replace($ref[0], self::getValeur($ref[1], $config), $config[$cle]);
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    		}
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			}
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    	}
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		}
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	}
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	}
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	private static function evaluerPhp(&$config, $cle) {
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	private static function evaluerPhp(&$config, $cle) {
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		if (preg_match('/^php:(.+)$/', $config[$cle], $correspondances)) {
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		if (preg_match('/^php:(.+)$/', $config[$cle], $correspondances)) {
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    		eval('$config["'.$cle.'"] = '.$correspondances[1].';');
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			eval('$config["'.$cle.'"] = '.$correspondances[1].';');
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    	}
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		}