public static function getHost()
{
if (empty($_SERVER['HTTP_HOST'])) {
KC_LOG_WARNING('Unkown http host.');
$httpHost = 'localhost';
} else {
$httpHost = $_SERVER['HTTP_HOST'];
}
self::$httpHost = $httpHost;
return $httpHost;
}
public function escapeString($strVal, $throw = true)
{
$this->getConnection($throw);
$ret = self::$_dbObj->escapeString($strVal);
if (false === $ret) {
$errInfo = self::$_dbObj->getError();
if (true === $throw) {
throw new Exception('database ' . __FUNCTION__ . ' failed [ error info: ' . $errInfo['errmsg'] . ", str: {$strVal} ].");
} else {
if (!empty($throw)) {
throw new Exception('database ' . $throw . ' failed [ error info: ' . $errInfo['errmsg'] . ", str: {$strVal} ].", 1);
}
}
KC_LOG_WARNING("escape string failed [ str: {$strVal} ].");
return $ret;
}
return $ret;
}
/**
*
* 转义一个字符串
* @param string $strVal 要转义的字符串
*/
public function escapeString($strVal)
{
if (!$this->_isConnected) {
KC_LOG_WARNING(__FUNCTION__ . " failed, db has not been connected [ strVal: {$strVal} ].");
return false;
}
return $this->_mysqli->escape_string($strVal);
}
/**
* 原子增加一个
*/
public function setIncr($key, $timeout = 0)
{
$retry = 0;
$ret = false;
do {
$this->getConnection($retry !== 0);
try {
$ret = $this->_redisObj->incr($key);
if ($timeout) {
$this->_redisObj->expire($key, $timeout);
}
break;
} catch (Exception $ex) {
KC_LOG_WARNING('try to set expire redis returned false [ times: %s ].', $retry);
sleep(1);
}
} while ($retry++ < Conf::$redisRetry);
if (false === $ret) {
throw new Exception('query redis to get all failed.');
}
return $ret;
}
