PHP should automatically disconnect after connecting to mysql, but is it blocked with GET_LOCK?

Access localhost/ci
The code is as follows (it’s just locked)

After finishing,
I used Navicat to establish a connection, adjusted the command line, locked it, and found that it was blocked:

Why? The php connection should be released
ps:
The environment is windows+nginx+php+mysql

Reply content:

Access localhost/ci
The code is as follows (it’s just locked)

After finishing,
I used Navicat to establish a connection, adjusted the command line, locked it, and found that it was blocked:

Why? The php connection should be released
ps:
The environment is windows+nginx+php+mysql

Unlock after locking

<code>unlock tables</code>

or

<code>rollback</code>

<code>select release_lock('lock1');</code>

Release lock