Check if column exist in Mysql table via php

Question

I created mysql tables and there I have put some columns.

Now I want to check that a certain column exists in the database via php.

Like this:

Answer 1

Ok I spent 5 hours on this issue looking through every (sometimes ridiculously convoluted) StackOverflow answer, never finding a working answer, and the answer is so frustratingly simple you will kick yourself (as did I):

php 7

$mysqli = new mysqli($mysql_url, $mysql_user, $mysql_password, $db_name);

$column_name = "my_column";
$table_name = "my_table";

if ($mysqli->query("SELECT $column_name FROM $table_name")){
        //my_column exists in my_table
    }
else{
        //my_column doesn't exist in my_table
}

Databases 101....