Example
Print out affected rows from different queries:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// Perform queries and print out affected rows
mysqli_query($con,"SELECT *
FROM Persons");
echo "Affected rows: " . mysqli_affected_rows($con);
mysqli_query($con,"DELETE FROM Persons WHERE Age>32");
echo "Affected
rows: " . mysqli_affected_rows($con);
mysqli_close($con);
?>
Definition and Usage
The mysqli_affected_rows() function returns the number of affected rows in the previous SELECT, INSERT, UPDATE, REPLACE, or DELETE query.
Syntax
mysqli_affected_rows(connection);
| Parameter | Description |
|---|---|
| connection | Required. Specifies the MySQL connection to use |
Technical Details
| Return Value: | An integer > 0 indicates the number of rows affected. 0 indicates that no records were affected. -1 indicates that the query returned an error |
|---|---|
| PHP Version: | 5+ |
< PHP MySQLi Reference