sqlsrv_num_rows

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sqlsrv_num_rowsRetrieves the number of rows in a result set

说明

mixed sqlsrv_num_rows ( resource $stmt )

Retrieves the number of rows in a result set. This function requires that the statment resource be created with a static or keyset cursor. For more information, see sqlsrv_query(), sqlsrv_prepare(), or » Specifying a Cursor Type and Selecting Rows in the Microsoft SQLSRV documentation.

参数

stmt

The statement for which the row count is returned. The statment resource must be created with a static or keyset cursor. For more information, see sqlsrv_query(), sqlsrv_prepare(), or » Specifying a Cursor Type and Selecting Rows in the Microsoft SQLSRV documentation.

返回值

Returns the number of rows retrieved on success and FALSE if an error occurred. If a forward cursor (the default) or dynamic cursor is used, FALSE is returned.

范例

Example #1 sqlsrv_num_rows() example

<?php
$server 
"serverName\sqlexpress";
$connectionInfo = array( "Database"=>"dbName""UID"=>"username""PWD"=>"password" );
$conn sqlsrv_connect$server$connectionInfo );

$sql "SELECT * FROM Table_1";
$params = array();
$options =  array( "Scrollable" => SQLSRV_CURSOR_KEYSET );
$stmt sqlsrv_query$conn$sql $params$options );

$row_count sqlsrv_num_rows$stmt );
   
if (
$row_count === false)
   echo 
"Error in retrieveing row count.";
else
   echo 
$row_count;
?>

参见