How to install lnmp environment and composer of php7.3 in centos7.7

The following is the tutorial column of composer to introduce to you the lnmp environment and composer detailed steps for installing php7.3 in centos7.7. I hope it will be helpful to friends in need!

1.Update source
　yum update
2.Install nginx
　yum install nginx
3. Start nginx
　service nginx start
4. Visit http://yourip

If you want to configure the domain name, see the bottom.

5. Install mysql:

Install mysql source yum localinstall http://dev.mysql.com/get/mysql57-community-release-el7-7. noarch.rpm
Installation: yum install mysql mysql-server
Start: /etc/init.d/mysqld start or service mysqld restart

Reset password ：mysql -u root -p
Chance of error: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
Reason: Permission problem
Solution: sudo chown -R root:root /var/lib/mysql (Both roots can be changed to owners, but they need to be consistent)
Restart service
service mysqld restart

Log in to mysql
mysql -u root -p // Press Enter to log in directly. There is no password for mysql just after installing it
Modify mysql password

Use mysql;
Modify earlier versions: update user set password =password('your password') where user='root';

High version modification: update user set authentication_string = password('your password'), password_expired = 'N', password_last_changed = now( ) where user = 'root';
　　　　alter user 'root'@'localhost' identified by 'your password';
　If the password is not strong enough, you can check the password level: SHOW VARIABLES LIKE "%password%" ;
Then set to low level: SET GLOBAL validate_password_policy=0;
Finally exit;
exit;
Restart service mysqld restart
Allow remote access
1 .Add the following command line if necessary to add remote connection capabilities to root. The link password is 'your password'
　　GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'your password' WITH GRANT OPTION;
　　FLUSH PRIVILEGES;

　2 .Open the my.cnf file
　　Add a line bind-address=0.0.0.0
　　3. Restart mysql

6. Install php
　　Yum install php php-devel //php5.6 version
If you want to install 7.3
First install the EPEL source

　　1.yum install epel-release    //安装 EPEL 源
　　2.yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm   //安装 REMI 源
　　3.yum install -y php73-php-fpm php73-php-cli php73-php-bcmath php73-php-gd php73-php-json php73-php-mbstring php73-php-mcrypt php73-php-mysqlnd php73-php-opcache php73-php-pdo php73-php-pecl-crypto php73-php-pecl-mcrypt php73-php-pecl-geoip php73-php-recode php73-php-snmp php73-php-soap php73-php-xml

4.PHP installation directory/etc/opt/remi/php73/ php.ini is also in it<br/> Find php Fix_pathinfo in .ini is changed to 0, but phpinfo() cannot be viewed; #8. Install composer

　

curl -sS https://getcomposer.org/installer | php73<br/> 　mv composer.phar /usr/local/bin/compose

r

　 Enter composer like this An error will be reported:

/usr/bin/env: php: No such file or directory

<br/> Solution <br/>cd usr/bin cp php73 php<br/> Just enter composer<br/> Change the mirror to Alibaba Cloud:<br/>composer config -g repo.packagist composer https://mirrors.aliyun.com/composer/<br/> 9. Install git<br/> 　

yum -y install git

10. Download laravel framework

　

composer create-project --prefer-dist laravel/laravel<br/> Project name "6.*"<div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false">　　　　systemctl restart php73-php-fpm #重启 　　　　systemctl start php73-php-fpm #启动 　　　　systemctl stop php73-php-fpm #关闭 　　　　systemctl status php73-php-fpm #检查状态</pre><div class="contentsignin">Copy after login</div></div> Modify the composer file.

composer create-project --prefer-dist laravel/laravel laravelxs "6.*"

<br/> Add "github.com": "Token generated on git"

11.nginx domain name configuration<br/>

Create File: domain name.conf

<br/> Contents: <br/>

　cd /root/.config/composer/
　　vi auth.json
　　{
　　　　"bitbucket-oauth": {},
　　　　"github-oauth": {},
　　　　"gitlab-oauth": {},
　　　　"gitlab-token": {
　　　　　　"github.com": "在git上生成的token"
　　　　},
　　　　"http-basic": {},
　　　　"bearer": {}
　　}

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