(PHP 5, PHP 7, PHP 8, PECL OCI8 >= 1.1.0)
oci_fetch_all — Fetches multiple rows from a query into a two-dimensional array
$statement,&$output,$offset = 0,$limit = -1,$flags = OCI_FETCHSTATEMENT_BY_COLUMN | OCI_ASSOCFetches multiple rows from a query into a two-dimensional array. By default, all rows are returned.
This function can be called only once for each query executed with oci_execute().
statementA valid OCI8 statement
identifier created by oci_parse() and executed
by oci_execute(), or a REF
CURSOR statement identifier.
outputThe variable to contain the returned rows.
LOB columns are returned as strings, where Oracle supports conversion.
See oci_fetch_array() for more information on how data and types are fetched.
offsetThe number of initial rows to discard when fetching the result. The default value is 0, so the first row onwards is returned.
limit
The number of rows to return. The default is -1 meaning return
all the rows from offset + 1 onwards.
flags
Parameter flags indicates the array
structure and whether associative arrays should be used.
| Constant | Description |
|---|---|
OCI_FETCHSTATEMENT_BY_ROW |
The outer array will contain one sub-array per query row. |
OCI_FETCHSTATEMENT_BY_COLUMN |
The outer array will contain one sub-array per query column. This is the default. |
Arrays can be indexed either by column heading or numerically. Only one index mode will be returned.
| Constant | Description |
|---|---|
OCI_NUM |
Numeric indexes are used for each column's array. |
OCI_ASSOC |
Associative indexes are used for each column's array. This is the default. |
Use the addition operator "+" to choose a combination of array structure and index modes.
Oracle's default, non-case sensitive column names will have
uppercase array keys. Case-sensitive column names will have
array keys using the exact column case.
Use var_dump()
on output to verify the appropriate case
to use for each query.
Queries that have more than one column with the same name should use column aliases. Otherwise only one of the columns will appear in an associative array.
Returns the number of rows in output, which
may be 0 or more.
Example #1 oci_fetch_all() example
<?php
$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR);
}
$stid = oci_parse($conn, 'SELECT POSTAL_CODE, CITY FROM locations WHERE ROWNUM < 3');
oci_execute($stid);
$nrows = oci_fetch_all($stid, $res);
echo "$nrows rows fetched<br>\n";
var_dump($res);
/ var_dump output is:
/ 2 rows fetched
/ array(2) {
/ ["POSTAL_CODE"]=>
/ array(2) {
/ [0]=>
/ string(6) "00989x"
/ [1]=>
/ string(6) "10934x"
/ }
/ ["CITY"]=>
/ array(2) {
/ [0]=>
/ string(4) "Roma"
/ [1]=>
/ string(6) "Venice"
/ }
/ }
/ Pretty-print the results
echo "<table border='1'>\n";
foreach ($res as $col) {
echo "<tr>\n";
foreach ($col as $item) {
echo " <td>".($item !== null ? htmlentities($item, ENT_QUOTES) : "")."</td>\n";
}
echo "</tr>\n";
}
echo "</table>\n";
oci_free_statement($stid);
oci_close($conn);
?>
Example #2 oci_fetch_all() example with OCI_FETCHSTATEMENT_BY_ROW
<?php
$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR);
}
$stid = oci_parse($conn, 'SELECT POSTAL_CODE, CITY FROM locations WHERE ROWNUM < 3');
oci_execute($stid);
$nrows = oci_fetch_all($stid, $res, null, null, OCI_FETCHSTATEMENT_BY_ROW);
echo "$nrows rows fetched<br>\n";
var_dump($res);
/ Output is:
/ 2 rows fetched
/ array(2) {
/ [0]=>
/ array(2) {
/ ["POSTAL_CODE"]=>
/ string(6) "00989x"
/ ["CITY"]=>
/ string(4) "Roma"
/ }
/ [1]=>
/ array(2) {
/ ["POSTAL_CODE"]=>
/ string(6) "10934x"
/ ["CITY"]=>
/ string(6) "Venice"
/ }
/ }
oci_free_statement($stid);
oci_close($conn);
?>
Example #3 oci_fetch_all() with OCI_NUM
<?php
$conn = oci_connect('hr', 'welcome', 'localhost/XE');
if (!$conn) {
$e = oci_error();
trigger_error(htmlentities($e['message'], ENT_QUOTES), E_USER_ERROR);
}
$stid = oci_parse($conn, 'SELECT POSTAL_CODE, CITY FROM locations WHERE ROWNUM < 3');
oci_execute($stid);
$nrows = oci_fetch_all($stid, $res, null, null, OCI_FETCHSTATEMENT_BY_ROW + OCI_NUM);
echo "$nrows rows fetched<br>\n";
var_dump($res);
/ Output is:
/ 2 rows fetched
/ array(2) {
/ [0]=>
/ array(2) {
/ [0]=>
/ string(6) "00989x"
/ [1]=>
/ string(4) "Roma"
/ }
/ [1]=>
/ array(2) {
/ [0]=>
/ string(6) "10934x"
/ [1]=>
/ string(6) "Venice"
/ }
/ }
oci_free_statement($stid);
oci_close($conn);
?>Note:
Using
offsetis very inefficient. All the rows to be skipped are included in the result set that is returned from the database to PHP. They are then discarded. It is more efficient to use SQL to restrict the offset and range of rows in the query. See oci_fetch_array() for an example.
Note:
Queries that return a large number of rows can be more memory efficient if a single-row fetching function like oci_fetch_array() is used.
Note:
For queries returning a large number of rows, performance can be significantly improved by increasing oci8.default_prefetch or using oci_set_prefetch().
Note:
Will not return rows from Oracle Database 12c Implicit Result Sets. Use oci_fetch_array() instead.
The Skip and MaxRows parameters were not added until version 4.2.1.
Previous versions of php used this syntax:
int ocifetchstatement ( resource stmt, array &output)
The function also took a third parameter that was not documented. ( I assume that it was a flag)Beware that only numerically indexed results will be returned if
OCI_NUM is used.
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