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PHP Quiz PHP CertificatePHP mysqli_multi_query() Function
Example
Perform multiple queries against the database:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno($con))
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql = "SELECT Lastname FROM Persons ORDER BY LastName;";
$sql .= "SELECT Country FROM Customers";
// Execute multi query
if (mysqli_multi_query($con,$sql))
{
do
{
// Store first result set
if ($result=mysqli_store_result($con))
{
while ($row=mysqli_fetch_row($result))
{
printf("%s\n",$row[0]);
}
mysqli_free_result($con);
}
}
while (mysqli_next_result($con));
}
mysqli_close($con);
?>
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno($con))
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$sql = "SELECT Lastname FROM Persons ORDER BY LastName;";
$sql .= "SELECT Country FROM Customers";
// Execute multi query
if (mysqli_multi_query($con,$sql))
{
do
{
// Store first result set
if ($result=mysqli_store_result($con))
{
while ($row=mysqli_fetch_row($result))
{
printf("%s\n",$row[0]);
}
mysqli_free_result($con);
}
}
while (mysqli_next_result($con));
}
mysqli_close($con);
?>
Definition and Usage
The mysqli_multi_query() function performs one or more queries against the database. The queries are separated with a semicolon.
Syntax
mysqli_multi_query(connection,query);
| Parameter | Description |
|---|---|
| connection | Required. Specifies the MySQL connection to use |
| query | Required. Specifies one or more queries, seperated with semicolon |
Technical Details
| Return Value: | FALSE if the first query fails |
|---|---|
| PHP Version: | 5+ |
PHP MySQLi Reference
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