# sqlsrv_rows_affected

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sqlsrv_rows_affected — Returns the number of rows modified by the last INSERT, UPDATE, or DELETE query executed

### 说明

sqlsrv_rows_affected ( resource `$stmt` ) : int

Returns the number of rows modified by the last INSERT, UPDATE, or DELETE query executed. For information about the number of rows returned by a SELECT query, see sqlsrv_num_rows().

### 参数

`stmt`

  The executed statement resource for which the number of affected rows is returned.

### 返回值

Returns the number of rows affected by the last INSERT, UPDATE, or DELETE query. If no rows were affected, 0 is returned. If the number of affected rows cannot be determined, -1 is returned. If an error occurred, `FALSE` is returned.

### 范例

Example #1 sqlsrv_rows_affected() example

    <?php
    $serverName = "serverName\sqlexpress";
    $connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password" );
    $conn = sqlsrv_connect( $serverName, $connectionInfo);
    if( $conn === false ) {
         die( print_r( sqlsrv_errors(), true));
    }

    $sql = "UPDATE Table_1 SET data = ? WHERE id = ?";

    $params = array("updated data", 1);

    $stmt = sqlsrv_query( $conn, $sql, $params);

    $rows_affected = sqlsrv_rows_affected( $stmt);
    if( $rows_affected === false) {
         die( print_r( sqlsrv_errors(), true));
    } elseif( $rows_affected == -1) {
          echo "No information available.<br />";
    } else {
          echo $rows_affected." rows were updated.<br />";
    }
    ?>

### 参见

- sqlsrv_num_rows() - Retrieves the number of rows in a result set