--Table creation
CREATE TABLE TEST_DATA
   ("PK" VARCHAR2(100),
    "TESTNOTE" VARCHAR(100)
   )
)

--Sequence creation
CREATE SEQUENCE SEQ_TEST_TABLE
INCREMENT BY 1 MINVALUE 1
CACHE 20 NOCYCLE


//PHP code example, require include for ADODB library

$bindVariables = array('PK' => 'SEQ_TEST_TABLE.nextval',
                       'TESTNOTE' => 'SOME INFORMATIONS');

$insertQuery = "INSERT INTO TEST_TABLE (PK)
                VALUES (:PK, :TESTNOTE)";

try {
    $result = $dbDbi->execute($insertQuery,$bindVariables);
 } catch(Exception $e) {
      echo $e->getMessage();
}