# sqlite_num_rows

# SQLiteResult::numRows

(PHP 5 < 5.4.0, PECL sqlite >= 1.0.0)

sqlite_num_rows -- SQLiteResult::numRows — Returns the number of rows in a buffered result set

### 说明

sqlite_num_rows ( resource `$result` ) : int

面向对象风格 (method):

SQLiteResult::numRows ( void ) : int

Returns the number of rows in the buffered `result` set.

### 参数

`result`

  The SQLite result resource. This parameter is not required when using the object-oriented method.

  > Note:

  > 此函数不能用于未缓冲的结果句柄。

### 返回值

Returns the number of rows, as an integer.

### 范例

Example #1 Procedural example

    <?php
    $db = sqlite_open('mysqlitedb');
    $result = sqlite_query($db, "SELECT * FROM mytable WHERE name='John Doe'");
    $rows = sqlite_num_rows($result);

    echo "Number of rows: $rows";
    ?>

Example #2 Object-oriented example

    <?php
    $db = new SQLiteDatabase('mysqlitedb');
    $result = $db->query("SELECT * FROM mytable WHERE name='John Doe'");
    $rows = $result->numRows();

    echo "Number of rows: $rows";
    ?>

### 参见

- sqlite_changes() - Returns the number of rows that were changed by the most recent SQL statement
- sqlite_query() - Executes a query against a given database and returns a result handle
- sqlite_num_fields() - Returns the number of fields in a result set