Can the trait of php be written in the same file as the class?

I think all official examples are like this. I think different classes can be used in the same code, and it is easy to maintain them in a separate file.

Php
Jan.16,2022

No, as long as include is fine, it is usually handled through the namespace auto-loading mechanism


trait can be maintained separately.
my file structure

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then use Filters where you need to use it.

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-64f5-7b29bf-1cd63.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7b29bf-1cd63.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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