sqlite_num_rows Returns the number of rows in a buffered result set


sqlite_num_rows

SQLiteResult->numRows

(PHP 5, PECL sqlite >= 1.0.0)

sqlite_num_rows -- SQLiteResult->numRowsReturns the number of rows in a buffered result set

说明

int sqlite_num_rows ( resource $result )

Object oriented style (method):

int SQLiteResult::numRows ( void )

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


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