本篇章节讲解PHP实现的mysql读写分离操作。分享给大家供大家参考，具体如下：
首先mysql主从需配置好，基本原理就是判断sql语句是否是select，是的话走master库，否则从slave查
‘;
$link = mysql_connect(“192.168.20.201:3306″,”open”,”123456″) or die(“Could not connect: ” . mysql_error());
mysql_select_db(“hadoop”);
$result = mysql_query($sql);
while($row = mysql_fetch_array($result,MYSQL_ASSOC)){
$data[]=$row;
}
//print_r($data);exit;
echo mysql_get_host_info($link).mysql_get_server_info($link).mysql_get_proto_info($link).mysql_get_client_info().’
‘; }else{ echo ‘I am using master db..
‘; $link = mysql_connect(“192.168.20.195:3306″,”123456”) or die(“Could not connect: ” . mysql_error()); mysql_select_db(“hadoop”); $result = mysql_query($sql); //echo @mysql_affected_rows($result); echo mysql_get_host_info($link).mysql_get_server_info($link).mysql_get_proto_info($link).mysql_get_client_info().’
‘; } } } $master = new db(“INSERT INTO user (id,name)VALUES (NULL,’100’)”); $slave = new db(“SELECT * from `user`”);
‘; }else{ echo ‘I am using master db..
‘; $link = mysql_connect(“192.168.20.195:3306″,”123456”) or die(“Could not connect: ” . mysql_error()); mysql_select_db(“hadoop”); $result = mysql_query($sql); //echo @mysql_affected_rows($result); echo mysql_get_host_info($link).mysql_get_server_info($link).mysql_get_proto_info($link).mysql_get_client_info().’
‘; } } } $master = new db(“INSERT INTO user (id,name)VALUES (NULL,’100’)”); $slave = new db(“SELECT * from `user`”);
结果：
I am using master db..
192.168.20.195 via TCP/IP5.1.73-log10mysqlnd 5.0.8-dev – 20102224 – $Id: 731e5b87ba42146a687c29995d2dfd8b4e40b325 $
I am using slave db..
192.168.20.201 via TCP/IP5.1.73-log10mysqlnd 5.0.8-dev – 20102224 – $Id: 731e5b87ba42146a687c29995d2dfd8b4e40b325 $
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