(PECL ibm_db2 >= 1.0.0)
db2_field_num — Returns the position of the named column in a result set
Returns the position of the named column in a result set.
stmtcolumn
Returns an integer containing the 0-indexed position of the named column in
the result set. If the specified column does not exist in the result set,
db2_field_num() returns false.