How can i get the result from oci_execute()? - php

Question

It gives true but when I use oci_fetch($stmt) it shows error.
oci_fetch(): ORA-24374: define not done before fetch or execute and
fetch
$sql = "DECLARE
C1 KTI_OPPL_DB.MH_ONLINE_PACKAGE_DB.TABLE_OF_LOV;
BEGIN
KTI_OPPL_DB.MH_ONLINE_PACKAGE_DB.GET_VESSEL_TYPE_LOV(C1);
END;";
$stmt = oci_parse($conn, $sql);
$r = oci_execute($stmt);
while (oci_fetch($stmt)) {
$nrows = oci_num_rows($stmt);
}

Answer 1

As I was telling you in the comment section, oci_fetch will not provide any result because the statement you are executing is not a sql statement, but a pl/sql procedure.
How to use OCI_FETCH
Fetches the next row from a query into internal buffers accessible either with oci_result(), or by using variables previously defined with oci_define_by_name().
An example using oci_result
<?php
$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR);
}
$sql = 'SELECT location_id, city FROM locations WHERE location_id < 1200';
$stid = oci_parse($conn, $sql);
oci_execute($stid);
while (oci_fetch($stid)) {
echo oci_result($stid, 'LOCATION_ID') . " is ";
echo oci_result($stid, 'CITY') . "<br>\n";
}
// Displays:
// 1000 is Roma
// 1100 is Venice
oci_free_statement($stid);
oci_close($conn);
?>
An example with oci_define_by_name
<?php
$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR);
}
$sql = 'SELECT location_id, city FROM locations WHERE location_id < 1200';
$stid = oci_parse($conn, $sql);
// The defines MUST be done before executing
oci_define_by_name($stid, 'LOCATION_ID', $locid);
oci_define_by_name($stid, 'CITY', $city);
oci_execute($stid);
// Each fetch populates the previously defined variables with the next row's data
while (oci_fetch($stid)) {
echo "Location id $locid is $city<br>\n";
}
// Displays:
// Location id 1000 is Roma
// Location id 1100 is Venice
oci_free_statement($stid);
oci_close($conn);
?>
In your case, you are executing a PROCEDURE which is providing as output a user defined type. In this case you might try oci_fetch_array to get the result of the procedure passed as an array of three values ( which is what you get from your output ). PHP and Oracle user defined types are tricky, so I'd try this ( Adapt to your code ):
<?php
$stid = oci_parse($conn, 'BEGIN yourprocedure(:rc); END;');
$refcur = oci_new_cursor($conn);
oci_bind_by_name($stid, ':rc', $refcur, -1, OCI_B_CURSOR);
oci_execute($stid);
// Execute the returned REF CURSOR and fetch from it like a statement identifier
oci_execute($refcur);
echo "<table border='1'>\n";
while (($row = oci_fetch_array($refcur, OCI_ASSOC+OCI_RETURN_NULLS)) != false) {
echo "<tr>\n";
foreach ($row as $item) {
echo " <td>".($item !== null ? htmlentities($item, ENT_QUOTES) : " ")."</td>\n";
}
echo "</tr>\n";
}
echo "</table>\n";
oci_free_statement($refcur);
oci_free_statement($stid);
oci_close($conn);
?>

Answer 2

Without knowing the exact PL/SQL to create your type, we can only guess what TABLE_OF_LOV is. Here is an example that shows getting records from a TABLE OF VARCHAR2, which seems a feasible guess.
<?php
error_reporting(E_ALL);
ini_set('display_errors', 'On');
$c = oci_connect("hr", "welcome", "localhost/XE");
if (!$c) {
$m = oci_error();
trigger_error('Could not connect to database: '. $m['message'], E_USER_ERROR);
}
//
// Create a PL/SQL package that has a 'TABLE OF' OUT parameter
//
$create_pkg = "
CREATE OR REPLACE PACKAGE mypackage AS
TYPE TABLE_OF_LOV IS TABLE OF VARCHAR(20) INDEX BY BINARY_INTEGER;
PROCEDURE GET_VESSEL_TYPE_LOV(p1 OUT TABLE_OF_LOV);
END mypackage;";
$s = oci_parse($c, $create_pkg);
if (!$s) {
$m = oci_error($c);
trigger_error('Could not parse statement: '. $m['message'], E_USER_ERROR);
}
$r = oci_execute($s);
if (!$r) {
$m = oci_error($s);
trigger_error('Could not execute statement: '. $m['message'], E_USER_ERROR);
}
$create_pkg_body = "
CREATE OR REPLACE PACKAGE BODY mypackage AS
PROCEDURE GET_VESSEL_TYPE_LOV(p1 OUT TABLE_OF_LOV) IS
BEGIN
p1(1) := 'one';
p1(2) := 'two';
p1(3) := '';
p1(4) := 'four';
p1(5) := 'five';
END GET_VESSEL_TYPE_LOV;
END mypackage;";
$s = oci_parse($c, $create_pkg_body);
if (!$s) {
$m = oci_error($c);
trigger_error('Could not parse statement: '. $m['message'], E_USER_ERROR);
}
$r = oci_execute($s);
if (!$r) {
$m = oci_error($s);
trigger_error('Could not execute statement: '. $m['message'], E_USER_ERROR);
}
//
// Call the PL/SQL procedure
//
$s = oci_parse($c, "BEGIN mypackage.get_vessel_type_lov(:bv); END;");
if (!$s) {
$m = oci_error($c);
trigger_error('Could not parse statement: '. $m['message'], E_USER_ERROR);
}
$r = oci_bind_array_by_name($s, ":bv", $array, 5, 20, SQLT_CHR);
if (!$r) {
$m = oci_error($s);
trigger_error('Could not bind a parameter: '. $m['message'], E_USER_ERROR);
}
$r = oci_execute($s);
if (!$r) {
$m = oci_error($s);
trigger_error('Could not execute statement: '. $m['message'], E_USER_ERROR);
}
var_dump($array);
?>
Output is:
$ php so3.php
array(5) {
[0]=>
string(3) "one"
[1]=>
string(3) "two"
[2]=>
string(0) ""
[3]=>
string(4) "four"
[4]=>
string(4) "five"
}
You may find other solutions such as writing 'PL/SQL wrappers' in the USING PL/SQL WITH OCI8 chapter on p187 of the free book The Underground PHP and Oracle Manual.