Podręcznik PHP
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# mysqli_stmt_affected_rows

(PHP 5 CVS only)

mysqli_stmt_affected_rows

(no version information, might be only in CVS)

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

## Description

Procedural style :

mixed mysqli_stmt_affected_rows ( object stmt)

Object oriented style (property):

class stmt {
mixed affected_rows
}

mysqli_stmt_affected_rows() returns the number of rows affected by INSERT, UPDATE, or DELETE query. If the last query was invalid, this function will return -1.

> Notatka: For SELECT statements mysqli_affected_rows() works like mysqli_num_rows().

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

## 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.

> Notatka: 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.

## See also

mysqli_stmt_num_rows(), mysqli_prepare()

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mysqli_stat | Początek rozdziału | mysqli_stmt_close