What level should the three-year phper have?

I have encountered some bottlenecks recently. I always feel that I don"t know how to improve my level. I want to see what level you think the three-year php should have

Php
Jul.02,2022

it is recommended to learn a static compiled language to improve the usual coding level.
you can also learn the front end to develop in the direction of full stack.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1c1d9dc-3338e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1c1d9dc-3338e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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