It looks like passing 0 (zero) as a $maxrows parameter is treated identically as -1 value - all the rows are returned.
OCIfetchstatement($stmt, $res, 1, 0, OCI_FETCHSTATEMENT_BY_ROW)
Tested under: PHP 4.4.3, WinXP pro
oci_fetch_all
(PHP 5, PECL oci8:1.1-1.2.4)
oci_fetch_all — Fetches all rows of result data into an array
Description
Fetches all the rows from a result into a user-defined array.
For details on the data type mapping performed by the oci8 driver, see the datatypes supported by the driver
Parameters
- statement
-
A valid OCI statement identifier.
- output
-
Note: This function sets NULL fields to PHP NULL value.
- skip
-
The number of initial rows to ignore when fetching the result (default value of 0, to start at the first line).
- maxrows
-
The number of rows to read, starting at the skip th row (default to -1, meaning all the rows).
- flags
-
Parameter flags can be any combination of the following:
- OCI_FETCHSTATEMENT_BY_ROW
- OCI_FETCHSTATEMENT_BY_COLUMN (default value)
- OCI_NUM
- OCI_ASSOC
Return Values
Returns the number of rows fetched or FALSE in case of an error.
Παραδείγματα
Example#1 oci_fetch_all() example
<?php
/* oci_fetch_all example mbritton at verinet dot com (990624) */
$conn = oci_connect("scott", "tiger");
$stmt = oci_parse($conn, "select * from emp");
oci_execute($stmt);
$nrows = oci_fetch_all($stmt, $results);
if ($nrows > 0) {
echo "<table border=\"1\">\n";
echo "<tr>\n";
foreach ($results as $key => $val) {
echo "<th>$key</th>\n";
}
echo "</tr>\n";
for ($i = 0; $i < $nrows; $i++) {
echo "<tr>\n";
foreach ($results as $data) {
echo "<td>$data[$i]</td>\n";
}
echo "</tr>\n";
}
echo "</table>\n";
} else {
echo "No data found<br />\n";
}
echo "$nrows Records Selected<br />\n";
oci_free_statement($stmt);
oci_close($conn);
?>
Notes
Note: In PHP versions before 5.0.0 you must use ocifetchstatement() instead. This name still can be used, it was left as alias of oci_fetch_all() for downwards compatability. This, however, is deprecated and not recommended.
oci_fetch_all
11-Jul-2007 05:55
07-Feb-2007 07:43
If you want to use more than one flag, you need to use the + to connect them:
<?php
oci_fetch_all($stmt, $row, "0", "-1", OCI_ASSOC+OCI_FETCHSTATEMENT_BY_ROW);
?>
12-Feb-2006 02:46
The number of rows returned is the number actually fetched, not the number potentially available. If one limits the number of rows to fetch, the number of rows returned will be bound by that limit. For example...
$nrows = oci_fetch_all($statement, $results, 0, 1);
would result in a returned value of '0' if there are no rows found for the statement, or '1' if any rows were found, regardless of the number actually present in the database.
