About the laravel website being hung up, the entry file was tampered with.

problem description

the website made of laravel is placed on the pagoda, but the entry file has been tampered with all the time. Try to find loopholes, delete many Trojans with the suffix PHP in the directory, and turn on the filter of pagoda nginx and the firewall of nginx (without triggering the firewall). But he was still poisoned the next day.

the environmental background of the problems and what methods you have tried

related codes

/ / Please paste the code text below (do not replace the code with pictures)

what result do you expect? What is the error message actually seen?

Php
Mar.31,2022

File upload loophole. Does the website have upload function?

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-64f5-1ebae76-4fcdf.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ebae76-4fcdf.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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