mysqli_stmt::$affected_rows
mysqli_stmt_affected_rows
(PHP 5, PHP 7, PHP 8)
mysqli_stmt::$affected_rows -- mysqli_stmt_affected_rows — Returns the total number of rows changed, deleted, inserted, or matched by the last statement executed
Description
Object-oriented style
Procedural style
Returns the number of rows affected by INSERT,
UPDATE, or DELETE query.
Works like mysqli_stmt_num_rows() for
SELECT statements.
Return Values
An integer greater than zero indicates the number of rows affected or
retrieved. Zero indicates that no records were updated for an
UPDATE statement, no rows matched the
WHERE clause in the query or that no query has yet been
executed. -1 indicates that the query returned an error or
that, for a SELECT query,
mysqli_stmt_affected_rows() was called prior to calling
mysqli_stmt_store_result().
Note:
If the number of affected rows is greater than maximum PHP int value, the number of affected rows will be returned as a string value.
Examples
Example #1 mysqli_stmt_affected_rows() example
Object-oriented style
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* create temp table */
$mysqli->query("CREATE TEMPORARY TABLE myCountry LIKE Country");
$query = "INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?";
/* prepare statement */
$stmt = $mysqli->prepare($query);
/* Bind variable for placeholder */
$code = 'A%';
$stmt->bind_param("s", $code);
/* execute statement */
$stmt->execute();
printf("Rows inserted: %d\n", $stmt->affected_rows);
Procedural style
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* create temp table */
mysqli_query($link, "CREATE TEMPORARY TABLE myCountry LIKE Country");
$query = "INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?";
/* prepare statement */
$stmt = mysqli_prepare($link, $query);
/* Bind variable for placeholder */
$code = 'A%';
mysqli_stmt_bind_param($stmt, "s", $code);
/* execute statement */
mysqli_stmt_execute($stmt);
printf("Rows inserted: %d\n", mysqli_stmt_affected_rows($stmt));
The above examples will output:
Rows inserted: 17
See Also
- mysqli_stmt_num_rows() - Returns the number of rows fetched from the server
- mysqli_stmt_store_result() - Stores a result set in an internal buffer
