有些时候可能需要批量转换mysql表的引擎,如下为php操作实现
<?php
/**
* 批量转换mysql表引擎
*/
error_reporting(e_all);
// 数据库连接配置
$host = 'localhost';
$username = 'root';
$passwd = '';
$database = 'test';
// 要转换的库名配置,多库转换增加配置元素即可
$configs = array($database);
// 转换配置
$convert_rule = array(
'from' => 'innodb',
'to' => 'myisam'
);
mysql_engine_convert();
/**
* 转换函数
*/
function mysql_engine_convert()
{
global $host,$username,$passwd,$configs,$convert_rule;
if ( ($conn = mysql_connect($host, $username, $passwd)) !== false)
{
foreach ($configs as $db_name)
{
mysql_select_db($db_name) or exit('not found db: '. $db_name);
$tables = mysql_query("show full tables");
while ($table = mysql_fetch_row($tables))
{
if ($table[1] === 'view') continue;
$sql = "show table status from {$db_name} where name='{$table[0]}' ";
if ($result = mysql_query($sql))
{
$table_status = mysql_fetch_row($result);
if (strtolower($table_status[1]) == strtolower($convert_rule['from']))
mysql_query("alter table {$table[0]} engine = {$convert_rule['to']}");
}
}
echo $db_name,':all tables engine is ',$convert_rule['to'],"\n";
}
} else {
echo "db error\n";
}
} 本文链接http://www.cxybl.com/html/wlbc/Php/20120607/28510.html