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mysqli::multi_query

mysqli_multi_query

(PHP 5, PHP 7)

mysqli::multi_query -- mysqli_multi_queryPerforms a query on the database

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Description

Object oriented style

mysqli::multi_query ( string $query ) : bool

Procedural style

mysqli_multi_query ( mysqli $link , string $query ) : bool

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().

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Parameters

link

Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()

query

The query, as a string.

Data inside the query should be properly escaped.

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Return Values

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

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Examples

Example #1 mysqli::multi_query() example

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->free();
        }
        
/* print divider */
        
if ($mysqli->more_results()) {
            
printf("-----------------\n");
        }
    } while (
$mysqli->next_result());
}

/* close connection */
$mysqli->close();
?>

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 will output something similar to:

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

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See Also

Find a PHP function

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-mysqli.multi-query.html

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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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