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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb;
class config_php_file
{
/** @var string phpBB Root Path */
protected $phpbb_root_path;
/** @var string php file extension */
protected $php_ext;
/**
* Indicates whether the php config file has been loaded.
*
* @var bool
*/
protected $config_loaded = false;
/**
* The content of the php config file
*
* @var array
*/
protected $config_data = array();
/**
* The path to the config file. (Default: $phpbb_root_path . 'config.' . $php_ext)
*
* @var string
*/
protected $config_file;
private $defined_vars;
/**
* Constructor
*
* @param string $phpbb_root_path phpBB Root Path
* @param string $php_ext php file extension
*/
function __construct($phpbb_root_path, $php_ext)
{
$this->phpbb_root_path = $phpbb_root_path;
$this->php_ext = $php_ext;
$this->config_file = $this->phpbb_root_path . 'config.' . $this->php_ext;
}
/**
* Set the path to the config file.
*
* @param string $config_file
*/
public function set_config_file($config_file)
{
$this->config_file = $config_file;
$this->config_loaded = false;
}
/**
* Returns an associative array containing the variables defined by the config file.
*
* @return array Return the content of the config file or an empty array if the file does not exists.
*/
public function get_all()
{
$this->load_config_file();
return $this->config_data;
}
/**
* Return the value of a variable defined into the config.php file or null if the variable does not exist.
*
* @param string $variable The name of the variable
* @return mixed Value of the variable or null if the variable is not defined.
*/
public function get($variable)
{
$this->load_config_file();
return isset($this->config_data[$variable]) ? $this->config_data[$variable] : null;
}
/**
* Load the config file and store the information.
*
* @return null
*/
protected function load_config_file()
{
if (!$this->config_loaded && file_exists($this->config_file))
{
$this->defined_vars = get_defined_vars();
require($this->config_file);
$this->config_data = array_diff_key(get_defined_vars(), $this->defined_vars);
$this->config_loaded = true;
}
}
/**
* Convert either 3.0 dbms or 3.1 db driver class name to 3.1 db driver class name.
*
* If $dbms is a valid 3.1 db driver class name, returns it unchanged.
* Otherwise prepends phpbb\db\driver\ to the dbms to convert a 3.0 dbms
* to 3.1 db driver class name.
*
* @param string $dbms dbms parameter
* @return string driver class
* @throws \RuntimeException
*/
public function convert_30_dbms_to_31($dbms)
{
// Note: this check is done first because mysqli extension
// supplies a mysqli class, and class_exists($dbms) would return
// true for mysqli class.
// However, per the docblock any valid 3.1 driver name should be
// recognized by this function, and have priority over 3.0 dbms.
if (strpos($dbms, 'phpbb\db\driver') === false && class_exists('phpbb\db\driver\\' . $dbms))
{
return 'phpbb\db\driver\\' . $dbms;
}
if (class_exists($dbms))
{
// Additionally we could check that $dbms extends phpbb\db\driver\driver.
// http://php.net/manual/en/class.reflectionclass.php
// Beware of possible performance issues:
// http://stackoverflow.com/questions/294582/php-5-reflection-api-performance
// We could check for interface implementation in all paths or
// only when we do not prepend phpbb\db\driver\.
/*
$reflection = new \ReflectionClass($dbms);
if ($reflection->isSubclassOf('phpbb\db\driver\driver'))
{
return $dbms;
}
*/
return $dbms;
}
// Force use of mysqli when specifying mysql
if (preg_match('/(phpbb\\\db\\\driver\\\)?mysql$/i', $dbms))
{
return 'phpbb\db\driver\mysqli';
}
throw new \RuntimeException("You have specified an invalid dbms driver: $dbms");
}
}
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