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<?php |
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namespace Garden; |
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/** |
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* Application configuration management. |
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* |
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* This class provides access to the application configuration information through one or more config files. |
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* You can load/save config files in several formats. The file extension of the file determines what format will the file will use. |
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* The following file formats are supported. |
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* |
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* - javascript object notation (json): .json or .json.php |
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* - php source code: .php |
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* - php serialized arrays: .ser or .ser.php |
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* - yaml: .yml or .yml.php |
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* |
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* When using config files we recommend always using the .*.php extension so that the file cannot be read through its url. |
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* |
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* @author Todd Burry <[email protected]> |
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* @copyright 2009 Vanilla Forums Inc. |
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* @license LGPL-2.1 |
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* @package Vanilla |
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* @since 1.0 |
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*/ |
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class Config { |
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/// Properties /// |
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/** |
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* @var array The config data. |
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*/ |
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protected static $data = []; |
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/** |
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* @var string The default path to load/save to. |
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*/ |
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protected static $defaultPath; |
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/// Methods /// |
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/** |
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* Get or set the default path. |
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* |
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* @param string $value Pass a value to set a new default path. |
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* @return string Returns the current default path. |
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*/ |
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public static function defaultPath($value = '') { |
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if ($value) { |
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self::$defaultPath = $value; |
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} elseif (!self::$defaultPath) { |
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self::$defaultPath = PATH_ROOT.'/conf/config.json.php'; |
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} |
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return self::$defaultPath; |
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} |
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/** |
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* Return all of the config data. |
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* |
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* @return array Returns an array of config data. |
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*/ |
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public static function data() { |
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return self::$data; |
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} |
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/** |
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* Get a setting from the config. |
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* |
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* @param string $key The config key. |
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* @param mixed $default The default value if the config file doesn't exist. |
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* @return mixed The value at {@link $key} or {@link $default} if the key isn't found. |
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* @see \config() |
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*/ |
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public static function get($key, $default = null) { |
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if (array_key_exists($key, self::$data)) { |
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return self::$data[$key]; |
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} else { |
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return $default; |
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} |
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} |
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/** |
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* Encode an array in ini format. |
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* The resulting array will work with parse_ini_file() and parse_ini_string(). |
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* |
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* @param array $data A flat, associative array of data. |
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* @return string The data in ini format. |
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*/ |
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// public static function iniEncode($data) { |
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// ksort($data, SORT_NATURAL | SORT_FLAG_CASE); |
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// |
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// $result = ''; |
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// |
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// $lastSection = null; |
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// |
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// foreach ($data as $key => $value) { |
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// $section = trim(strstr($key, '.', true), '.'); |
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// |
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// if ($section !== $lastSection) { |
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// if ($section) { |
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// $result .= "\n[$section]\n"; |
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// } |
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// $lastSection = $section; |
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// } |
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// |
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// $result .= $key . ' = '; |
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// |
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// if (is_bool($value)) { |
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// $str = $value ? 'true' : 'false'; |
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// } elseif (is_numeric($value)) { |
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// $str = $value; |
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// } elseif (is_string($value)) { |
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// $str = '"' . addcslashes($value, "\"") . '"'; |
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// } |
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// $result .= $str . "\n"; |
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// } |
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// |
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// return $result; |
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// } |
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/** |
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* Load configuration data from a file. |
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* |
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* @param string $path An optional path to load the file from. |
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* @param string $path If true the config will be put under the current config, not over it. |
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* @param string $php_var The name of the php variable to load from if using the php file type. |
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*/ |
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public static function load($path = '', $underlay = false, $php_var = 'config') { |
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if (!$path) { |
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$path = self::$defaultPath; |
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} |
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$loaded = array_load($path, $php_var); |
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if (empty($loaded)) { |
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return; |
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} |
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if (!is_array(self::$data)) { |
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self::$data = []; |
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} |
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if ($underlay) { |
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self::$data = array_replace($loaded, self::$data); |
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} else { |
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self::$data = array_replace(self::$data, $loaded); |
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} |
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} |
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/** |
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* Save data to the config file. |
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* |
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* @param array $data The config data to save. |
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* @param string $path An optional path to save the data to. |
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* @param string $php_var The name of the php variable to load from if using the php file type. |
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* @return bool Returns true if the save was successful or false otherwise. |
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* @throws \InvalidArgumentException Throws an exception when the saved data isn't an array. |
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*/ |
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public static function save($data, $path = null, $php_var = 'config') { |
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if (!is_array($data)) { |
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throw new \InvalidArgumentException('Config::save(): Argument #1 is not an array.', 400); |
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} |
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if (!$path) { |
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$path = static::defaultPath(); |
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} |
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// Load the current config information so we know what to replace. |
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$config = array_load($path, $php_var); |
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// Merge the new config into the current config. |
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$config = array_replace($config, $data); |
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// Remove null config values. |
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$config = array_filter($config, function ($value) { |
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return $value !== null; |
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}); |
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ksort($config, SORT_NATURAL | SORT_FLAG_CASE); |
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$result = array_save($config, $path, $php_var); |
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return $result; |
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} |
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} |
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In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: