php如何为运维主机生成不同的随机秘钥

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<?php
	class generator1 {
	
		//const HOSTS = array(array('ubuntu'=>'123.57.221.66'),array('pay_WEB'=>'101.201.222.104'),array('video_web'=>'101.201.31.40'),array('bg_web211'=>'123.56.181.211'),array('quanzi'=>'101.201.55.37'),array('bg_web231'=>'60.205.127.231'),array('db2_master'=>'60.205.166.72'),array('db2_slave'=>'60.205.166.74'),array('db3_others'=>'59.110.11.16'),array('test_web'=>'60.205.150.53'),array('nfs1_Redis2'=>'123.57.184.167'),array('nfs1_redis1'=>'123.57.184.235'),array('zhuanfaqi'=>'123.57.185.38'),array('prepare_web'=>'59.110.8.82'),array('bg_web64'=>'10.29.130.64'));
		//define("HOSTS",array('123.57.221.66','101.201.222.104','101.201.31.40','123.56.181.211','101.201.55.37','60.205.127.231','60.205.166.72','60.205.166.74','59.110.11.16','60.205.150.53','123.57.184.167','123.57.184.235','123.57.185.38','59.110.8.82','10.29.130.64'));
		const HOSTS = array('123.57.203.66','101.101.222.104','102.221.51.40','112.56.131.211','121.202.45.37','101.205.127.231','101.205.166.72','63.205.166.74','39.110.13.12','65.205.150.53','33.57.134.167','123.59.104.235','148.57.135.38','59.190.8.77','10.29.130.52');
		const HOSTNAMES = array('ubuntu','pay_web104','video_web40','bg_web211','quanzi37','bg_web231','db2_master72','db2_slave74','db3_others','test_web','nfs1_redis1','nfs2_redis2','zhuanfaqi','prepare_web','bg_web64');
	
		// 密码生成器函数
		public function generator_pass(){
			$time = time();
			//$md5($string);	md5 函数也可以为字符串生成一个随机的值
			$string = $time . "!@#$%^&";
			$string1 = str_shuffle($string); 
			//$passWord = chunk_split($string1,9); 会在第9个位置插入一个指定的字符串
			$password = mb_substr($string1,0,12);
			return $password;
			//var_dump($string1."\n");
			//var_dump($password."\n");
		}
		
		// 为主机生成密码并记录日志
		public function produce_pass_for_hosts(){
			$new_hosts = array();
			$hosts = generator1::HOSTS;
			$hostnames = generator1::HOSTNAMES;
			for($i=0;$i<count($hosts);$i++){
				$new_hosts[$i]['hostname']  = $hostnames[$i];
				$new_hosts[$i]['host']  = $hosts[$i];
				$new_hosts[$i]['password']  = $this->generator_pass();
			}
			return $new_hosts;
		}
}
		$gen = new generator1();
		$host_info = $gen->produce_pass_for_hosts();
		var_dump($host_info);
?>

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