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Php Reference

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 ( object 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().

Return values

Returns TRUE on success or FALSE on failure.

See also

mysqli_use_result(), mysqli_store_result(), mysqli_next_result(), mysqli_more_results()

Example

Example 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();
?>

Example 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);
?>

The above examples would produce the following output: 

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


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