MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli::multi_query
mysqli_multi_query
Performs a query on the database
Object oriented style
public bool mysqli::multi_query(string query);Procedural style
bool mysqli_multi_query(mysqli link,
string 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.
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.
Returns false if the first statement
failed. To retrieve subsequent errors from other statements you
have to call
mysqli_next_result
first.
Example 3.56 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
mysqli_query
|
mysqli_use_result
|
mysqli_store_result
|
mysqli_next_result
|
mysqli_more_results
|