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mysqli_stmt
Returns the total number of rows changed, deleted, or inserted by the last executed statement

mysqli_stmt::$affected_rows

mysqli_stmt_affected_rows

(PHP 5, PHP 7)

mysqli_stmt::$affected_rows -- mysqli_stmt_affected_rows — Returns the total number of rows changed, deleted, or inserted by the last executed statement

Description

Object oriented style

int $mysqli_stmt->affected_rows;

Procedural style

mysqli_stmt_affected_rows ( mysqli_stmt $stmt ) : int

Returns the number of rows affected by INSERT, UPDATE, or DELETE query.

This function only works with queries which update a table. In order to get the number of rows from a SELECT query, use mysqli_stmt_num_rows() instead.

Parameters

stmt: Procedural style only: A statement identifier returned by mysqli_stmt_init().

Return Values

An integer greater than zero indicates the number of rows affected or retrieved. Zero indicates that no records where updated for an UPDATE/DELETE statement, no rows matched the WHERE clause in the query or that no query has yet been executed. -1 indicates that the query has returned an error. NULL indicates an invalid argument was supplied to the function.

Note:
If the number of affected rows is greater than maximal PHP int value, the number of affected rows will be returned as a string value.

Examples

Example #1 Object oriented style

<?php$mysqli = new mysqli("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit();}/* create temp table */$mysqli->query("CREATE TEMPORARY TABLE myCountry LIKE Country");$query = "INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?";/* prepare statement */if ($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); /* close statement */ $stmt->close();}/* close connection */$mysqli->close();?>

Example #2 Procedural style

<?php$link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit();}/* create temp table */mysqli_query($link, "CREATE TEMPORARY TABLE myCountry LIKE Country");$query = "INSERT INTO myCountry SELECT * FROM Country WHERE Code LIKE ?";/* prepare statement */if ($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($stmt)); /* close statement */ mysqli_stmt_close($stmt);}/* close connection */mysqli_close($link);?>

The above examples will output:

rows inserted: 17

Php/docs/mysqli-stmt.affected-rows

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