PHP 手册
后退前进

db2_fetch_array

(PECL)

db2_fetch_array --  Returns an array, indexed by column position, representing a row in a result set

说明

array db2_fetch_array ( resource stmt [, int row_number] )

Returns an array, indexed by column position, representing a row in a result set. The columns are 0-indexed.

参数

stmt

A valid stmt resource containing a result set.

row_number

Requests a specific 1-indexed row from the result set. Passing this parameter results in a PHP warning if the result set uses a forward-only cursor.

返回值

Returns a 0-indexed array with column values indexed by the column position representing the next or requested row in the result set. Returns FALSE if there are no rows left in the result set, or if the row requested by row_number does not exist in the result set.

范例

例子 1. Iterating through a forward-only cursor

If you call db2_fetch_array() without a specific row number, it automatically retrieves the next row in the result set.

<?php

$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$stmt = db2_prepare($conn, $sql);
$result = db2_execute($stmt, $sql);

while ($row = db2_fetch_array($result)) {
    printf ("%-5d %-16s %-32s %10s\n",
        $row[0], $row[1], $row[2], $row[3]);
}
?>

上例将输出：

0     Pook             cat                                    3.20
5     Rickety Ride     goat                                   9.70
2     Smarty           horse                                350.00

例子 2. Retrieving specific rows with db2_fetch_assoc() from a scrollable cursor

If your result set uses a scrollable cursor, you can call db2_fetch_assoc() with a specific row number. The following example retrieves every other row in the result set, starting with the second row.

<?php

$sql = "SELECT id, name, breed, weight FROM animals ORDER BY breed";
$result = db2_exec($stmt, $sql, array('cursor' => DB2_SCROLLABLE));

$i=2;
while ($row = db2_fetch_array($result, $i)) {
    printf ("%-5d %-16s %-32s %10s\n",
        $row[0], $row[1], $row[2], $row[3]);
    $i = $i + 2;
}
?>

上例将输出：

0     Pook             cat                                    3.20
5     Rickety Ride     goat                                   9.70
2     Smarty           horse                                350.00

参见

db2_fetch_assoc()
db2_fetch_both()
db2_fetch_object()
db2_fetch_row()
db2_result()

后退起点前进
db2_execute上一级db2_fetch_assoc