If you use PDO::fetch instead of PDO::fetchAll and do not reach the end the result set, PDO::nextRowset() will fail with "SQLSTATE[HY000]: General error: PDO_DBLIB: dbresults() returned FAIL."
(PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 0.2.0)
PDOStatement::nextRowset — 在一个多行集语句句柄中推进到下一个行集
一些数据库服务支持返回一个以上行集（也被称为结果集）的存储过程。PDOStatement::nextRowset() 使你能够结合一个 PDOStatement 对象访问第二个以及后续的行集。上述的每个行集可以有不同的列集合。
成功时返回 TRUE， 或者在失败时返回 FALSE。
Example #1 获取由一个存储过程返回的多个行集
下面例子展示了怎样调用一个存储过程，返回三个行集的 MULTIPLE_ROWSETS 。用一个 do / while 循环来循环调用 PDOStatement::nextRowset() 方法， 当不再有行集返回时返回 false 并结束循环。
<?php
$sql = 'CALL multiple_rowsets()';
$stmt = $conn->query($sql);
$i = 1;
do {
$rowset = $stmt->fetchAll(PDO::FETCH_NUM);
if ($rowset) {
printResultSet($rowset, $i);
}
$i++;
} while ($stmt->nextRowset());
function printResultSet(&$rowset, $i) {
print "Result set $i:\n";
foreach ($rowset as $row) {
foreach ($row as $col) {
print $col . "\t";
}
print "\n";
}
print "\n";
}
?>
以上例程会输出：
Result set 1: apple red banana yellow Result set 2: orange orange 150 banana yellow 175 Result set 3: lime green apple red banana yellow
If you use PDO::fetch instead of PDO::fetchAll and do not reach the end the result set, PDO::nextRowset() will fail with "SQLSTATE[HY000]: General error: PDO_DBLIB: dbresults() returned FAIL."
on MSSQL and 'dsn' => 'dblib:...',:
If you know how many count rowset then don't use contruction of do..while.
<?php
do {
$pdoStatement->fetchAll(\PDO::FETCH_ASSOC);
} while (
$pdoStatement->nextRowset()
);
?>
When I get large fetchAll(over 30) for second nextRowset. I get error - Segmentation fault.
Uses step-by-step insted do..while is fix for this bug:
<?php
$pdoStatement->fetchAll(\PDO::FETCH_ASSOC);
$pdoStatement->nextRowset();
$pdoStatement->fetchAll(\PDO::FETCH_ASSOC);
?>
PDO::nextRowset() does not appear to be currently supported by the Firebird PDO driver. Unfortunate.