ConfigManager.php
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<?php
namespace clagiordano\weblibs\configmanager;
/**
* Class ConfigManager, class for easily read and access to php config array file.
* @package clagiordano\weblibs\configmanager
*/
class ConfigManager
{
/** @var array $configData */
private $configData = null;
/** @var string $configFilePath */
private $configFilePath = null;
/**
* Create config object, optionally automatic load config
* from argument $configFilePath
*
* @param string $configFilePath
* @return ConfigManager
*/
public function __construct($configFilePath = null)
{
return $this->loadConfig($configFilePath);
}
/**
* Load config data from file and store it into internal property
*
* @param null|string $configFilePath
*
* @return ConfigManager
*/
public function loadConfig($configFilePath = null)
{
if (!is_null($configFilePath)) {
$this->configFilePath = $configFilePath;
if (file_exists($configFilePath)) {
$this->configData = require $configFilePath;
}
}
return $this;
}
/**
* Prepare and write config file on disk
*
* @param null|string $configFilePath
* @param bool $autoReloadConfig
*
* @return ConfigManager
* @throws \RuntimeException
*/
public function saveConfigFile($configFilePath = null, $autoReloadConfig = false)
{
if (is_null($configFilePath)) {
$configFilePath = $this->configFilePath;
}
$configFileContent = "<?php\n\n";
$configFileContent .= "return ";
$configFileContent .= var_export($this->configData, true);
$configFileContent .= ";\n\n";
try {
file_put_contents($configFilePath, $configFileContent);
} catch (\Exception $exc) {
throw new \RuntimeException(
__METHOD__ . ": Failed to write config file to path '{$configFilePath}'"
);
}
if ($autoReloadConfig) {
$this->loadConfig($configFilePath);
}
return $this;
}
/**
* Get value pointer from config for get/set value
*
* @param string $configPath
*
* @return mixed
*/
private function & getValuePointer($configPath)
{
$configData =& $this->configData;
$parts = explode('.', $configPath);
$length = count($parts);
for ($i = 0; $i < $length; $i++) {
if (!isset($configData[ $parts[ $i ] ])) {
$configData[ $parts[ $i ] ] = ($i === $length) ? [] : null;
}
$configData = &$configData[ $parts[ $i ] ];
}
return $configData;
}
/**
* Get value from config data throught keyValue path
*
* @param string $configPath
* @param mixed $defaultValue
*
* @return mixed
*/
public function getValue($configPath, $defaultValue = null)
{
$stored = $this->getValuePointer($configPath);
return is_null($stored) ? $defaultValue : $stored;
}
/**
* Check if exist required config for keyValue
*
* @param string $keyValue
*
* @return mixed
*/
public function existValue($keyValue)
{
return !is_null($this->getValue($keyValue));
}
/**
* Set value in config path
*
* @param string $configPath
* @param mixed $newValue
*
* @return ConfigManager
*/
public function setValue($configPath, $newValue)
{
$configData = &$this->getValuePointer($configPath);
$configData = $newValue;
return $this;
}
}