PHP Try and Catch for SQL Insert

问题描述

我的网站上有一个页面(高流量)，每次加载页面时都会插入.

I have a page on my website (high traffic) that does an insert on every page load.

我很好奇最快和最安全的方法(捕获错误)并在系统无法插入 MySQL 时继续.我应该使用 try/catch 或 die 还是其他什么.我想确保插入发生，但如果由于某种原因它不能，我希望页面仍然继续加载.

I am curious of the fastest and safest way to (catch an error) and continue if the system is not able to do the insert into MySQL. Should I use try/catch or die or something else. I want to make sure the insert happens but if for some reason it can't I want the page to continue to load anyway.

...
$db = mysql_select_db('mobile', $conn);
mysql_query("INSERT INTO redirects SET ua_string = '$ua_string'") or die('Error #10');
mysql_close($conn);
...

推荐答案

检查 文档 表明其出错时返回 false.所以使用返回状态而不是 或 die().如果失败，它将返回 false，您可以记录(或任何您想做的事情)然后继续.

Checking the documentation shows that its returns false on an error. So use the return status rather than or die(). It will return false if it fails, which you can log (or whatever you want to do) and then continue.

$rv = mysql_query("INSERT INTO redirects SET ua_string = '$ua_string'");
if ( $rv === false ){
     //handle the error here
}
//page continues loading

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