How to solve PHP Warning: PHP Startup: Unable to load dynamic library ‘/opt/homebrew/opt/php@7.4/bin/memcached/modules/memcached.so’ issue on Ventura 13.4

If you check enabled php modules with php -m and there is not any memcached entry in the list, then you have to check the memcached extension configuration file.

vim /opt/homebrew/etc/php/7.4/conf.d/ext-memcached.ini

In this file above if the extension given by a path then you have to modify the line without any path and extension name only. (Note: For any after exception probability you may choose to comment the line with the path information.)

 #extension=/opt/homebrew/opt/php@7.4/bin/memcached/modules/memcached.so
 extension=memcached.so

After that modification restart the php 7.4 services with

brew services restart php@7.4

Without any further error or warning the php@7.4 service should restart after this command above.

Lastly check the module with php -m and memcached should be over there.

Finished.