/**
* Loads options from an XML file (see class description for XML format)
* Returns either an array of options (if $ret_array is set to true) or epConfiginstance
* @param string xml config file name
* @param bool return array if true
* @return mixed array or epConfig
* @throws epExceptionConfig
* @access protected
* @static
*/
public static function &load($cfg_file = DEF_CONFIG_FILE, $ret_array = false)
{
// if empty file, return either an empty array or config object
$cfg_file = trim($cfg_file);
if (!$cfg_file) {
if ($ret_array) {
return array();
} else {
$cfg = new epConfig();
return $cfg;
}
}
// load xml config file
switch (epFileExtension($cfg_file)) {
case 'xml':
if (false === ($options = epConfig::_loadXml($cfg_file))) {
return false;
}
break;
case 'ini':
if (false === ($options = epConfig::_loadIni($cfg_file))) {
return false;
}
break;
default:
throw new epExceptionConfig('Unrecognized config file (should be either .ini or .xml)');
return self::$false;
}
// return array if required
if ($ret_array) {
return $options;
}
// return epConfig
$config = new epConfig();
$config->merge($options);
$config->setSource($cfg_file);
return $config;
}
/**
* Set config to the object
* This method perfpdos array_merge (overwrite) operatoins
* on options and can be called multiple times
* @param mixed array or epConfig
* @return bool
*/
public function setConfig($config)
{
$this->config->merge($config);
return true;
}
/**
* test epConfig merge: different options
* same options but different values
*/
function testConfigMergeDiff2()
{
// create cfg1
$cfg1 = new epConfig();
$this->assertTrue($cfg1 != null);
// create cfg2
$cfg2 = new epConfig();
$this->assertTrue($cfg2 != null);
// set same options/values to cfg1 and cfg2
for ($i = 0; $i < 10; $i++) {
// set an option-value pair
$option = 'option' . $i;
$value_set = 'cfg1_value' . $i;
// cfg1 set/get option
$cfg1->set($option, $value_set);
$value_get = $cfg1->get($option);
$this->assertTrue($value_set == $value_get);
$value_set = 'cfg2_value' . $i;
// cfg2 set/get option
$cfg2->set($option, $value_set);
$value_get = $cfg2->get($option);
$this->assertTrue($value_set == $value_get);
}
// merge cfg2 to cfg1
$cfg1->merge($cfg2);
// since options in cfg2 are the same, cfg1 should not be changed
// set same options/values to cfg1 and cfg2
for ($i = 0; $i < 10; $i++) {
// values from cfg2 now have overridden cfg1's
$option = 'option' . $i;
$value_set = 'cfg2_value' . $i;
$value_get = $cfg1->get($option);
$this->assertTrue($value_set == $value_get);
}
}
