Merge custom plugins in one folder

Choose one file to be the main file of the plugin.
From it, use

require_once( plugin_dir_path( __FILE__ ) . 'another-file.php' );

for each of the other files you want to include.

This means the rest of the files no longer need the plugin comment header, just the actual code that does whatever you need it to.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)