[imsvidskiy]

Schema::getColumn() (added in #61759) compares the column name case sensitively, while hasColumn(), hasColumns() and getColumnType() on the same builder don't:

Schema::hasColumn('users', 'Email');     // true
Schema::getColumnType('users', 'Email'); // "varchar"
Schema::getColumn('users', 'Email');     // []

So checking with hasColumn() first and then reading getColumn($table, $column)['type'] ends with an "Undefined array key" error.

This lowercases both sides like the other methods do, same as #61506 did for hasIndex(), and uses the same loop as getColumnType(). Exact names keep working as before.