first blood

configuration.php

@@ -0,0 +1,98 @@
+<?php
+
+class Configuration {
+    private static $instance = null;
+
+    /**
+     * ! WARNING !
+     *
+     * Those are default values, if you need to change them for a particular host,
+     * please just create a file named 'configuration.local.php' in the same directory
+     * and redefine the values there !
+     *
+     * This file must contain an array named $configuration containing the keys you
+     * want to redefine. Then, those values will be used to replace those in the
+     * array defined just below.
+     *
+     * @var array configuration values
+     */
+    private $values = array(
+        'db' => array(
+            'driver' => 'SQL Server Native Client 11.0',
+            'server' => 'BSR2012\SQLEXPRESS,1433',
+            'username' => 'alcoda',
+            'password' => 'alcodaonly',
+            'name' => 'NetBiblio3',
+        ),
+        'solr' => array(
+            'server' => '192.168.1.250',
+            'port' => '8983',
+            'username' => '',
+            'password' => '',
+            'result_count' => 10,
+        ),
+        'log' => array(
+            'file' => 'c:\\logs\\ws_ipad.txt',
+            'active' => false,
+        ),
+        'session' => array(
+            'save_path' => ''
+        ),
+
+        'checkfile_url' => 'http://fichiers.bibliothequesonore.ch/checkfile.php?',
+
+        'netbiblio_worker_id' => 45,
+        'www_employee_id' => 45,
+        'www_library_id' => 2,
+    );
+
+    private $custom_config = 'configuration.local.php';
+
+    private function __construct() {
+        // by default, set the session save path to the default value;
+        $this->values['session']['save_path'] = session_save_path();
+
+        if(file_exists($this->custom_config)) {
+            require_once($this->custom_config);
+
+            if(! isset($configuration) || ! is_array($configuration)) {
+                throw new RuntimeException("You custom configuration in '{$this->custom_config}' must be in a variable named '\$configuration' and be an array.");
+            }
+
+            $this->values = array_replace_recursive($this->values, $configuration);
+        }
+    }
+
+    private function dotNotationAccess($data, $key, $default=null)
+    {
+        $keys = explode('.', $key);
+        foreach ($keys as $k) {
+            if (!is_array($data)) {
+                throw new Exception("Try to access non-array as array, key '$key''");
+            }
+            if (!isset($data[$k])) {
+                return $default;
+            }
+
+            $data = $data[$k];
+        }
+        return $data;
+    }
+
+    private function value($name, $default) {
+        return $this->dotNotationAccess($this->values, $name, $default);
+    }
+
+    /**
+     * @param $name
+     * @param mixed $default the default value for your configuration option
+     * @return mixed return the configuration value if the key is find, the default otherwise
+     */
+    public static function get($name, $default = null) {
+        if(is_null(self::$instance)) {
+            self::$instance = new Configuration();
+        }
+
+        return self::$instance->value($name, $default);
+    }
+}