# PDOStatement::rowCount

(PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 0.1.0)

PDOStatement::rowCount — Returns the number of rows affected by the last SQL statement

### Description

public PDOStatement::rowCount ( ) : int

PDOStatement::rowCount() returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement executed by the corresponding `PDOStatement` object.

If the last SQL statement executed by the associated `PDOStatement` was a SELECT statement, some databases may return the number of rows returned by that statement. However, this behaviour is not guaranteed for all databases and should not be relied on for portable applications.

> Note:

> This method returns "0" (zero) with the SQLite driver at all times, and with the PostgreSQL driver only when setting the `PDO::ATTR_CURSOR` statement attribute to `PDO::CURSOR_SCROLL`.

### Return Values

Returns the number of rows.

### Examples

Example #1 Return the number of deleted rows

PDOStatement::rowCount() returns the number of rows affected by a DELETE, INSERT, or UPDATE statement.

`<?php
/* Delete all rows from the FRUIT table */
$del = $dbh->prepare('DELETE FROM fruit');
$del->execute();
/* Return number of rows that were deleted */
print("Return number of rows that were deleted:\n");
$count = $del->rowCount();
print("Deleted $count rows.\n");
?>`

The above example will output something similar to:

    Return number of rows that were deleted:
    Deleted 9 rows.

Example #2 Counting rows returned by a SELECT statement

For most databases, PDOStatement::rowCount() does not return the number of rows affected by a SELECT statement. Instead, use PDO::query() to issue a SELECT COUNT(*) statement with the same predicates as your intended SELECT statement, then use PDOStatement::fetchColumn() to retrieve the number of matching rows.

`<?php
$sql = "SELECT COUNT(*) FROM fruit WHERE calories > 100";
$res = $conn->query($sql);
$count = $res->fetchColumn();
print "There are " . $count . " matching records.";`

The above example will output something similar to:

    There are 2 matching records.

### See Also

- PDOStatement::columnCount() - Returns the number of columns in the result set
- PDOStatement::fetchColumn() - Returns a single column from the next row of a result set
- PDO::query() - Executes an SQL statement, returning a result set as a PDOStatement object