WordPress requires FTP username and password

Reprinted from: WordPress requires FTP user name and password problem
WordPress installation delete plug-in requires FTP user name and password problem

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I used the steps 1 and 3 of Method 1 to succeed!
It is recommended to use the first method. The above is just a personal opinion, a plan prepared for the server.

method one:

Server command operation

1. Enter the wordpress directory, mine is /var/www/html/wordpress

cd /var/www/html/wordpress

2. Add the following code at the end of wp-config.php under the wordpress directory:

 if(is_admin()) {
    
     
    add_filter('filesystem_method',create_function('$a','return "direct";')); 
    define('FS_CHMOD_DIR', 0751);
}

2. Set the user and user group of the decompressed wordpress directory to be the same as the file user and user group in it:

Xshell link server, execute under the server:

cd wordpress
ll 				#(小写LL)

You can see the users and user groups of the files in the wordpress directory:

-rw-r--r-- 1 nob 605  418 Sep 25 2013 index.php
-rw-r--r-- 1 nob 60534  19935 Jan 3 2017 license.txt 

Users and user groups are:

`nob:605` （这里替换为你自己的用户和用户组名）

Then set the wordpress directory user and user group:

cd ..
chown nobo:605 wordpress 

Perform the above operations under the test, and you're done. If there are still problems, go to step 3.

3. Set the permission of wordpress and wp-content in the directory to 777

chmod -R 777 wp-content

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Method Two:

Brute force deletion

Enter wordpress -> wp-content -> themesto find the appropriate topic names can be deleted.