Solution to the PHP site prompt that '/var/lib/mysql/mysql.sock' does not exist

[mysql]
[client]
socket = /tmp/mysql.sock
#Write the correct location of mysql.sock here, usually either under /tmp/ or under /var/lib/mysql/ Copy the code below

2. Modify the connection method: Specify the IP address and use tcp to connect to mysql instead of local sock.

#mysql -h127.0.0.1 -user -ppassword

3. Create link Add a link to mysql.sock. For example, if the actual mysql.sock is under /tmp/, type the command:

#ln -s /tmp/mysql.sock /var/lib/mysql/mysql.sock

Choose any one of the above three solutions to solve the problem and complete Then restart php, nginx (or apache).