mysql 分表

http://www.dewen.org/q/274/php+hash%E7%AE%97%E6%B3%95%E4%BD%BF%E7%94%A8

 

<?php

 

function getHash(&$keyword,$n)

{

$hash = crc32($keyword) >> 16 & 0xffff;

return sprintf("%02s",$hash % $n);

}

 

$table = 'userinfo_'.getHash($username,100);

 

$sql = "insert into {$table} values(....)";

 

$db = new models($table);//封装的数据库操作类

$db->MyInsert($sql);

 

?>

 

<?php

//范围:00-63

function crc_hash(&$keyword,$n=64)

{

$hash = crc32($keyword) >> 16 & 0xffff;

return sprintf("%02s",$hash % $n);

}

?>