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<?php |
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/** |
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* 同步推送数据 |
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*/ |
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include_once(dirname(dirname(dirname(__FILE__)))."/library/publicBase.php"); |
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class syncPushDataTest { |
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private $table; |
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protected $dbflag = 'pushdatapro'; |
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private static $db_w = null; |
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private static $db_r = null; |
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private static $link; |
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private $ismaster = false; |
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public function __construct() { |
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$obj = new mOrder(); |
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$info = $obj->getSyncDataModifyTime(); |
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var_dump($info); |
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if ($info['pdp_modified'] == '0000-00-00 00:00:00') { |
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$sql = "select min(pdp_modified) as pdp_modified from `pdp_tb_trade`"; |
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$r = $this->execute($sql, false, true); |
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$start = $r['pdp_modified']; |
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} else { |
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$start = $info['pdp_modified']; |
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} |
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$end = date("Y-m-d H:i:s", strtotime($start)+7200); // 每次取2小时数据 |
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var_dump($start, $end); |
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$list = $this->selectAll('pdp_tb_trade', array('sql'=>'`pdp_modified` >=? and `pdp_modified` <= ?', 'vals'=>array($start, $end)), 'pdp_modified desc'); |
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var_dump($list); |
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} |
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/** |
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* 解析数据库配置信息 |
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* 获得数据库的相关连接信息 |
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* @param sting $dbflag 数据库标识 |
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* @param boolean $master 是否为主库 |
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*/ |
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private function parseDbCnf($dbflag,$master=false) { |
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$configs = parse_ini_file(_Storage_CNF_PATH, true); |
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$config = $configs[strtolower($dbflag)]; |
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if($master) { |
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$host_port = $config['master']; |
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} else { |
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$host_port = $config['slave']; |
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} |
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$hps = explode(',', $host_port); |
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$random = rand(0, count($hps)-1); |
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$hp = $hps[$random]; |
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list($host, $port) = explode(':', $hp); |
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$cnf = array(); |
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$cnf['host'] = trim($host); |
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$cnf['port'] = trim($port); |
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$cnf['user'] = $master==false ? trim($config['user_r']) : trim($config['user']); |
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$cnf['pwd'] = $master==false ? trim($config['passwd_r']) : trim($config['passwd']); |
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$cnf['db'] = trim($config['db']); |
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return $cnf; |
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} |
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private function getInstance() { |
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$dbpara = $this->ismaster==false ? 'db_r' : 'db_w'; |
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if(!is_null(self::$$dbpara)) { |
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self::$link = self::$$dbpara; |
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// 判断mysql是否gone away |
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$status = self::$link->getAttribute(PDO::ATTR_SERVER_INFO); |
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if($status == 'MySQL server has gone away') { |
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self::$link = self::$$dbpara = $this->toDb(); |
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} |
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} else { |
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self::$link = self::$$dbpara = $this->toDb(); |
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} |
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return self::$link; |
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} |
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private function initDb($table, $ismaster=false) { |
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$this->table = $table; |
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$this->ismaster = $ismaster; |
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return self::getInstance(); |
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} |
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private function toDb() { |
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$type = strtolower($this->dbflag); |
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$cnf = $this->parseDbCnf($this->dbflag, $this->ismaster); |
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if (count($cnf)<=0 && $cnf['host'] == '') { |
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return false; |
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} |
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try { |
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$conn[PDO::ATTR_TIMEOUT] = 3; |
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if($GLOBALS['pconnect_db']===true) $conn[PDO::ATTR_PERSISTENT] = true; |
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$conn[PDO::MYSQL_ATTR_INIT_COMMAND] = "SET NAMES UTF8;"; |
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$db = new PDO('mysql:host='.$cnf['host'].';port='.$cnf['port'].';dbname='.$cnf['db'],$cnf['user'],$cnf['pwd'], $conn); |
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} catch(PDOException $e) { |
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//error_log('['.date('Y-m-d H:i:s').'][first-fail]'.implode('|', $cnf).':'.$e->getMessage()."\n", 3, LOG_PATH_BASE.'/mysql/stat_todb_'.date('Y-m-d').'.log'); |
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try { |
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$conn[PDO::ATTR_TIMEOUT] = 3; |
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if($GLOBALS['pconnect_db']===true) $conn[PDO::ATTR_PERSISTENT] = true; |
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$conn[PDO::MYSQL_ATTR_INIT_COMMAND] = "SET NAMES UTF8;"; |
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$db = new PDO('mysql:host='.$cnf['host'].';port='.$cnf['port'].';dbname='.$cnf['db'],$cnf['user'],$cnf['pwd'], $conn); |
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} catch(PDOException $e) { |
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//error_log('['.date('Y-m-d H:i:s').'][second-fail]'.implode('|', $cnf).':'.$e->getMessage()."\n", 3, LOG_PATH_BASE.'/mysql/stat_todb_'.date('Y-m-d').'.log'); |
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return false; |
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} |
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//error_log('['.date('Y-m-d H:i:s').'][second-succ]'.implode('|', $cnf)."\n", 3, LOG_PATH_BASE.'/mysql/stat_todb_'.date('Y-m-d').'.log'); |
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return $db; |
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} |
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//error_log('['.date('Y-m-d H:i:s').'][first-succ]'.implode('|', $cnf)."\n", 3, LOG_PATH_BASE.'/mysql/stat_todb_'.date('Y-m-d').'.log'); |
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return $db; |
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} |
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/** |
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* 数据库Select多数据 |
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* 封装标准方法 |
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* @param string $table 表名 |
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* @param string $where where条件,比如:array('sql'=>'name1=? and name2=?', 'vals'=>array('name1', 'name2')) |
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* @param string $orderby 排序,比如:"ctime desc, name asc" |
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* @param array $limit 读取数量 array(起始数, 数量) |
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*/ |
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public function selectAll($table, $where=array(), $orderby='', $limit=array()) { |
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$this->initDb($table); |
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try { |
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$wheresql = ''; |
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if(!empty($where)) { |
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$wheresql = "WHERE {$where['sql']}"; |
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$vals = $where['vals']; |
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} |
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$orderby = "ORDER BY {$orderby}"; |
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if($orderby === null) $orderby = ''; |
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$limitstr = empty($limit) ? '' : "LIMIT {$limit[0]}, {$limit[1]}"; |
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$sql = "SELECT * FROM `{$this->table}` {$wheresql} {$orderby} {$limitstr}"; |
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$st = self::$link->prepare($sql); |
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$res = $st->execute($vals); |
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if(!$res) return false; |
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return $st->fetchAll(PDO::FETCH_ASSOC); |
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} catch(PDOException $e) { |
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return false; |
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} |
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} |
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/** |
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* 执行SQL查询语句 |
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* |
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* 当SQL语句为查询语句时返回执行后的全部数据 |
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* @access public |
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* @param string $sql SQL语句 |
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* @param boolean $all_rows 是否显示全部数据开关,当为true时,显示全部数据,为false时,显示一行数据,默认为true |
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* @param boolean $is_select 是否为查询语句 |
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* @return array | void |
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*/ |
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public function execute($sql, $all_rows=true, $is_select=false) { |
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$sql = trim($sql); |
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if(!$sql) return false; |
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$this->ismaster = $is_select==false ? true : false; |
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self::getInstance(); |
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try { |
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$st = self::$link->prepare($sql); |
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$res = $st->execute(); |
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if(!$res) { |
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error_log('['.date('Y-m-d H:i:s').']'.$sql.':'.json_encode($st->errorInfo())."\n", 3, LOG_PATH_BASE.'/mysql/execute_'.date('Y-m-d').'.log'); |
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return false; |
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} |
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if(!$is_select) return $res; |
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if($all_rows==true) { |
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return $st->fetchAll(PDO::FETCH_ASSOC); |
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} else { |
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return $st->fetch(PDO::FETCH_ASSOC); |
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} |
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} catch(PDOException $e) { |
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return false; |
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} |
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} |
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} |
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new syncPushDataTest(); |
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