php页面打不开 | PHP | Warning | mysqli_connect(): Headers and client library minor version mismatch.

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发布时间：2019-05-25

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问题描述

centos 7.6系统。www/html里页面打不开。

查看httpd和mariadb状态，都是active

systemctl status httpdsystemctl status mariadb

但是状态一览，有异常

mariadb

Status: "Taking your SQL requests now..."

httpd

Status: "Total requests: 1; Current requests/sec: 0; Current traffic:   0 B/sec"

查看httpd的错误日志文件

cd /var/log/httpdtail error_log

报错，主要 Headers and client library minor version mismatch

[Tue Jun 23 13:57:03.584917 2020] [:error] [pid 26888] [client 111.22.178.34:42143] PHP Warning:  mysqli_connect(): Headers and client library minor version mismatch. Headers:50564 Library:100144 in /var/www/html/ocsreports/require/function_commun.php on line 161, referer: http://175.24.84.82/ocsreports/index.php?function=admin_info

解决方法

查看php client版本，版本不一致

php -i|grep ClientIMAP c-Client Version => 2007fClient API version => 10.1.44-MariaDBClient API library version => 10.1.44-MariaDBClient API header version => 5.5.64-MariaDBClient API version => 10.1.44-MariaDBSoap Client => enabled

删除php-mysql，安装php-mysqlnd

yum remove php-mysqlyum install php-mysqlnd

重启服务

systemctl  restart httpdsystemctl  restart mysqld

再次查看，此时版本一致

php -i|grep ClientIMAP c-Client Version => 2007fClient API version => mysqlnd 5.0.10 - 20111026 - $Id: e707c415db32080b3752b232487a435ee0372157 $Client API library version => mysqlnd 5.0.10 - 20111026 - $Id: e707c415db32080b3752b232487a435ee0372157 $Client API version => mysqlnd 5.0.10 - 20111026 - $Id: e707c415db32080b3752b232487a435ee0372157 $Soap Client => enabled

推荐使用php-mysqlnd。而不是php-mysql，php-mysql从PHP5起已经被废弃，并别从PHP7开始已经被移除。

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