从PHP获取MySQL等待超时

Question

有没有办法从PHP直接获取MySQL等待超时？

Answer 1

只是做一个正常的mysql查询。

mysql> show variables where Variable_name='wait_timeout'; 
+---------------+-------+ 
| Variable_name | Value | 
+---------------+-------+ 
| wait_timeout | 28800 | 
+---------------+-------+ 
1 row in set (0.07 sec) 

在PHP中，它看起来像这样。

// it's been a while to there might be typos 
$res = mysql_query("show variables where Variable_name='wait_timeout'"); 
$arr = mysql_fetch_assoc($res); 
echo $arr['Variable_name']; 
echo $arr['Value'];