SQL Statement Not Allowed

I'm trying to do this to return a result set that I can process from a PHP
script:

MySQLStmt =
'Declare C1 Cursor With Return For +
Select Select FLDA, FLDB +
From INVENTORY +
Where PARTNUM =' +
cBlank +
pInModel +
cBlank +
'For Read Only';

I then prepare the statement, and I get an SQL0084 - SQL statement not
allowed.

Is it because I'm on V5R4?

Thanks!