(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
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.
statement
Procedural style only: A mysqli_stmt object returned by mysqli_stmt_init().
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.
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");
$mysqli->query("CREATE TEMPORARY TABLE myCountry LIKE Country");
$query = "INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?";
$stmt = $mysqli->prepare($query);
$code = 'A%';
$stmt->bind_param("s", $code);
$stmt->execute();
printf("Rows inserted: %d\n", $stmt->affected_rows);
Procedural style
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
mysqli_query($link, "CREATE TEMPORARY TABLE myCountry LIKE Country");
$query = "INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?";
$stmt = mysqli_prepare($link, $query);
$code = 'A%';
mysqli_stmt_bind_param($stmt, "s", $code);
mysqli_stmt_execute($stmt);
printf("Rows inserted: %d\n", mysqli_stmt_affected_rows($stmt));
The above examples will output:
Rows inserted: 17