Podręcznik PHP
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# mysqli_multi_query

(PHP 5)

mysqli_multi_query

(no version information, might be only in CVS)

mysqli->multi_query -- Performs a query on the database

## Description

Procedural style:

bool mysqli_multi_query ( mysqli link, string query )

Object oriented style (method):

class mysqli {
bool multi_query ( string query )
}

The mysqli_multi_query() executes one or multiple queries which are concatenated by a semicolon.

To retrieve the resultset from the first query you can use mysqli_use_result() or mysqli_store_result(). All subsequent query results can be processed using mysqli_more_results() and mysqli_next_result().

## Zwracane wartości

mysqli_multi_query() only returns `FALSE` if the first statement failed. To retrieve subsequent errors from other statements you have to call mysqli_next_result() first.

## Patrz także

mysqli_use_result(), mysqli_store_result(), mysqli_next_result() i mysqli_more_results().

## Przykłady

Przykład 1. Object oriented style

`<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT CURRENT_USER();";
$query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";
/* execute multi query */
if ($mysqli->multi_query($query)) {
do {
/* store first result set */
if ($result = $mysqli->store_result()) {
while ($row = $result->fetch_row()) {
printf("%s\n", $row[0]);
}
$result->close();
}
/* print divider */
if ($mysqli->more_results()) {
printf("-----------------\n");
}
} while ($mysqli->next_result());
}
/* close connection */
$mysqli->close();
?>`

Przykład 2. Procedural style

`<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT CURRENT_USER();";
$query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";
/* execute multi query */
if (mysqli_multi_query($link, $query)) {
do {
/* store first result set */
if ($result = mysqli_store_result($link)) {
while ($row = mysqli_fetch_row($result)) {
printf("%s\n", $row[0]);
}
mysqli_free_result($result);
}
/* print divider */
if (mysqli_more_results($link)) {
printf("-----------------\n");
}
} while (mysqli_next_result($link));
}
/* close connection */
mysqli_close($link);
?>`

Powyższy przykład wyświetli:

    my_user@localhost
    -----------------
    Amersfoort
    Maastricht
    Dordrecht
    Leiden
    Haarlemmermeer

Poprzedni | Spis treści | Następny
mysqli_more_results | Początek rozdziału | mysqli_next_result