add support for check unix socket in LudicrousDB::check_tcp_responsiveness()

[MahdiAkrami01]

Problem

some users set skip-networking in my.conf, this setting disables TCP/IP networking for MySQL, allowing only local socket connections (i.e., connections from the same server). It’s useful for securing MySQL in environments where external access isn't necessary.

PHP Warning:  fsockopen(): unable to connect to localhost:3306 (Connection refused)

Disable TCP Check

i try to set $wpdb->check_tcp_responsiveness = false; but after that i got this warning:

[12-Nov-2024 18:10:10 UTC] WordPress database error 2024-11-12 18:10:10 Can't select master__r - 
'referrer' => '..........',
'host' => localhost,
'tcp_responsive' => ,
'lagged_status' => 3 for query SELECT * FROM .........

Solution

Check unix socket instead of $host and $port to fix this warning.

$wpdb->add_database( $master = [
	'host'          => 'localhost:3306:/var/lib/mysql/mysql.sock',
	'user'          => '.....',
	'password'      => '......',
	'name'          => '.......',
	'dataset'       => 'master',
	'read'          => 1,
	'write'         => 1,
	'timeout'       => 0.2,
] );