Whether SQL Injections such variant of protection is possible?

Question

SQL

Recently I found this method of protection, can you comment on what its disadvantages
are and if there is a much better option, can you share it?) The point
is to check the request for the presence of basic commands for SQL queries and if it is,
then interrupt the execution

Answer 1

Stop using the crutches from the beginning of x00.
Used by PDO or mysqli_* + prepared stataments