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