数据表迁徙数据一致性验证

<?php/** * 使用方法：  * php -f mysql_diff.php 	yes 			dir 						10 * 		               		是否计算条数	是否计算输出d5并保存到文件	合并数据的级别 * */if(php_sapi_name() != 'cli'){	die("请在CLI模式下运行");}array_shift($argv);if(empty($argv)){	die("at letase contain one info");}$is_count = array_shift($argv);$is_md5 = empty($argv) ? false : array_shift($argv);$conbine_num = empty($argv) ? 1 : intval(array_shift($argv));if($is_md5 && !is_dir($is_md5) && !mkdir($is_md5, 777, true)){	die("error info : md5 info must be input to a file");}$dbinfos = array(	'host' => 'localhost',	'port' => '3306',	'user' => 'root',	'pswd' => '123456',	'charset' => 'utf8',	'tables' => array(		'lagou.pos',		'lagou.pos_innodb',	),);//验证格式if(!$link = mysql_connect($dbinfos['host'].":".$dbinfos['port'],$dbinfos['user'], $dbinfos['pswd'])){	die("connect to [{$host}@{$port}] failed!!");}if(!mysql_query("set names {$dbinfos['charset']}")){	die("set charset error : ".mysql_error());}foreach ($dbinfos['tables'] as $table) {	if($is_count)	{		$sql = "select count(*) as nums from {$table}";		$ret = mysql_query($sql);		if(!$ret)		{			die("error : ".mysql_error());		}		$ret = mysql_fetch_array($ret, MYSQL_ASSOC);		echo "{$table} : {$ret['nums']}\n";	}			if($is_md5)	{		$path = $is_md5.DIRECTORY_SEPARATOR.$table;		$sql = "select * from {$table}";		$ret = mysql_query($sql);		$flag = 0;		$fields = '';		while ($_ret = mysql_fetch_array($ret, MYSQL_NUM)) {			$flag++;			while($_ret)			{				$fields .= array_pop($_ret);			}			if($flag % $conbine_num == 0)			{				file_put_contents($path, md5($fields)."\n", FILE_APPEND);				$fields = '';			}		}		if($flag % $conbine_num != 0 && $flag > 0)		{			file_put_contents($path, md5($fields)."\n", FILE_APPEND);		}		echo "save to file info : ".realpath($path)."\n";	}}