Macbook安装mysql+php+phpmyadming进行网站构建笔记

最近在学PHP，需要搭建LAMP，但是自己的机器是Macbook，为了学习就在上面搭建，经理很曲折。

一、环境搭建

1、硬件：macbook air（2013年）i5

2、系统：macos majave 10.14

3、软件：

apache：Apache/2.4.34 (Unix)---系统自带；

mysql：8.0.19 下载地址：https://dev.mysql.com/downloads/mysql/

workbench：8.0.19 下载地址：https://dev.mysql.com/downloads/workbench/ （workbench是mysql操作数据库的界面环境，一定要注意版本一致，之前用的不一致的版本就是连不上数据库，恼怒的好几天！）

PHP：版本为7.1.19 。macbook上会默认安装php，通过设置/etc/apache2/httpd.conf文件，#LoadModule php7_module libexec/apache2/libphp7.so的语句中删除“#”，重新运行sudo apachectl restart即可。

phpmyadmin：4.8.3多国语言版本 https://www.phpmyadmin.net/files/4.8.3/，下载后解压，放到/Library/WebServer/Documents（apache发布网站的位置）目录下，文件夹命名为phpmyadmin。

备注：macos系统比较好的是可以利用命令行，与linux系统部分程序兼容，可以通过brew clone 操作进行下载，有兴趣的人可以百度一下。

二、遇坑解决方案

1、收件解决就是workbench连接数据库问题，一方面，版本不一致，修改后还是不行，具体错误找不到，但是记得添加了 /private/etc/my.cnf文件，内容如下：

[client]
default-character-set=utf8

#password   =root password
port        = 3306
socket      = /tmp/mysql.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
character-set-server=utf8
init_connect='SET NAMES utf8
port        = 3306
socket      = /tmp/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
character-set-server=utf8
init_connect='SET NAMES utf8'
# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking

# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin
# binary logging format - mixed recommended
    binlog_format=mixed

      # required unique id between 1 and 2^32 - 1
      # defaults to 1 if master-host is not set
      # but will not function as a master if omitted
      server-id   = 1

    # Replication Slave (comment out master section to use this)
    #
    # To configure this host as a replication slave, you can choose between
    # two methods :
    #
    # 1) Use the CHANGE MASTER TO command (fully described in our manual) -
    #    the syntax is:
    #
    #    CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
    #    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
    #
    #    where you replace <host>, <user>, <password> by quoted strings and
    #    <port> by the master's port number (3306 by default).
    #
    #    Example:
    #
    #    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
    #    MASTER_USER='joe', MASTER_PASSWORD='secret';
    #
    # OR
#
    # 2) Set the variables below. However, in case you choose this method, then
    #    start replication for the first time (even unsuccessfully, for example
    #    if you mistyped the password in master-password and the slave fails to
    #    connect), the slave will create a master.info file, and any later
    #    change in this file to the variables' values below will be ignored and
    #    overridden by the content of the master.info file, unless you shutdown
    #    the slave server, delete master.info and restart the slaver server.
    #    For that reason, you may want to leave the lines below untouched
    #    (commented) and instead use CHANGE MASTER TO (see above)
    #
    # required unique id between 2 and 2^32 - 1
    # (and different from the master)
    # defaults to 2 if master-host is set
    # but will not function as a slave if omitted
    #server-id       = 2
    #
    # The replication master for this slave - required
    #master-host     =   <hostname>
    #
    # The username the slave will use for authentication when connecting
    # to the master - required
    #master-user     =   <username>
        [mysqldump]
        quick
        max_allowed_packet = 16M

          [mysql]
          no-auto-rehash
          # Remove the next comment character if you are not familiar with SQL
          #safe-updates
          default-character-set=utf8

        [myisamchk]
        key_buffer_size = 20M
        sort_buffer_size = 20M
        read_buffer = 2M
        write_buffer = 2M

          [mysqlhotcopy]
          interactive-timeout

在设置里找到的mysql，点击configuration，在configuration中选择/private/etc/my.cnf，然后重启mysql。 Macbook安装mysql+php+phpmyadming进行网站构建笔记

2、php连接数据库问题，在/Library/WebServer/Documents文件夹下新建index.php文件编程测试连接mysql情况，代码如何如下：

<?php
    $con = mysqli_connect("localhost","root","qwertyuiop","test");
   //测试是否连接数据库
   if($con){
      echo "连接成功";
   }
   else{
      echo "连接失败 ";
   }
?>

通过火狐输入localhost/index.php结果报错mysqli_connect连接有问题

在网上查了一下，说是本地socket设置与默认的不一样，导致php无法找到mysql的socket文件。根据网上提供的方法，需要做如下操作。

首先，在MySQL中用status查看数据库状态，如下所示：

Macbook安装mysql+php+phpmyadming进行网站构建笔记

其中，标红的部分是我们需要的。然后打开php.ini文件，需要将mysql.default_socket、mysqli.default_socket、pdo_mysql.default_socket的值设置为标红后面的那个目录。重启apache服务器，后续info.php工作正常，MySQL的版本信息能够正常显示了。（php.ini不找不到，把/private/ect/php.ini.default 文件复制后，去掉.default即可）。

3、phpmyadmin设置问题，通过火狐输入：localhost/phpmyadmin/进入phpmyadmin登录界面，直接输入用户名密码，结果报错

Macbook安装mysql+php+phpmyadming进行网站构建笔记

mysqli_real_connect(): The server requested authentication method unknown to the client

是由于新版本的mysql账号密码解锁机制不一致导致的

解决办法：

打开终端，输入mysql -uroot -p，在输入密码，进入mysql操作界面。

输入use mysql;

再输入 ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '你的密码';

即可。

好了！大事搞定！可以测试php连接数据库了！心塞了好几天！！

Macbook安装mysql+php+phpmyadming进行网站构建笔记

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