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php更新mysql后获取影响的行数发生异常解决方法 - 站长搜索
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php更新mysql后获取影响的行数发生异常解决方法

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2014-12-14 19:51:07 转载来源: 网络整理/侵权必删

本文为大家讲解的是php更新mysql后获取影响的行数发生异常解决方法,感兴趣的同学参考下。 mysql_affected_rows函数当UPDATE前后的数据一样时会返回异常值 从manual上知道了mysql_affected_rows函数当UPDATE前后的数据一样时会返回异常值, 下面有个方便的解决办法,从官方munual上看到 bdobrica at gmail dot com 留言的: As a solution to the problem pointed in the post reffering to mysql_affected_rows() returning 0 when you are making an update query and the fields are not modified although the query is valid, i'm posting the following function. It is very simple and based on a previous post. funct

本文为大家讲解的是php更新mysql获取响的行数发生异常解决方法,感兴趣的同学参考下。

mysql_affected_rows函数当UPDATE前后的数据一样时会返回异常值
从manual上知道了mysql_affected_rows函数当UPDATE前后的数据一样时会返回异常值,

下面有个方便的解决办法,从官方munual上看到 bdobrica at gmail dot com 留言的:
As a solution to the problem pointed in the post reffering to mysql_affected_rows() returning 0 when you are making an update query and the fields are not modified although the query is valid, i'm posting the following function. It is very simple and based on a previous post.


function mysql_modified_rows () {
$info_str = mysql_info();
$a_rows = mysql_affected_rows();
ereg("Rows matched: ([0-9]*)", $info_str, $r_matched);
return ($a_rows < 1)?($r_matched[1]?$r_matched[1]:0):$a_rows;
}


PS:因为这个小问题折腾了半天,感觉php真是太不清晰了


标签: php 更新 mysql 获取 响的 行数 发生 异常 解决


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