Home Database Mysql Tutorial Deprecated: mysql_connect(): The mysql extension i_MySQL

Deprecated: mysql_connect(): The mysql extension i_MySQL

Jun 01, 2016 pm 01:10 PM

原因:

php 5个版本,5.2、5.3、5.4、5.5,怕跟不上时代,新的服务器直接上5.5,但是程序出现如下错误:Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in,看意思就很明了,说mysql_connect这个模块将在未来弃用,请你使用mysqli或者PDO来替代。

网友解决方式:

解决方法1:

禁止php报错

display_errors = On
改为
display_errors = Off

鉴于这个服务器都是给用户用的,有时候他们需要报错(…都是给朋友用的,^_^),不能这做,让他们改程序吧,看方案2.

解决方法2:

常用的php语法连接mysql如下

<?php
$link = mysql_connect('localhost', 'user', 'password');
mysql_select_db('dbname', $link);
改成mysqi
<?php
$link = mysqli_connect('localhost', 'user', 'password', 'dbname');

常用mysql建表SQL如下

<?php
//  老的
mysql_query('CREATE TEMPORARY TABLE `table`', $link);
// 新的
mysqli_query($link, 'CREATE TEMPORARY TABLE `table`');

解决方法三:
在php程序代码里面设置报警级别

<?php
error_reporting(E_ALL ^ E_DEPRECATED);

Deprecated的问题就这样解决掉了,不过还是建议大家尽快取消mysql的用户,全部都走向mysqli或者mysqlnd等等。mysql确实是太不安全而且太老旧了。

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华丽丽的分割线

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经过多次尝试,方法1对于我来说没用,方法2解决了一个函数的问题,可能又导致后续的调用函数的问题,诸如我遇到的有:

1:“Warning: mysqli_query() expects parameter 1 to be mysqli, string given in F:/xampp/htdocs/op154/system/database/mysql.php on line 11”

2:“  Notice: Trying to get property of non-object problem ”

还有各种在xampp的index.php中提示的警告和致命错误;

最后,放弃,用方法3,眼不见为净,解决。但是不太爽,实在不符合我的钻牛角尖死磕精神,不过先放着,做其他正事。待学习后能有改进方法!

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