PHP Manual
SQLSRV 函数
Indicates whether the specified statement has rows

sqlsrv_has_rows

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sqlsrv_has_rows — Indicates whether the specified statement has rows

说明

sqlsrv_has_rows ( resource $stmt ) : bool

Indicates whether the specified statement has rows.

参数

stmt: A statement resource returned by sqlsrv_query() or sqlsrv_execute().

返回值

Returns TRUE if the specified statement has rows and FALSE if the statement does not have rows or if an error occurred.

范例

Example #1 sqlsrv_has_rows() example

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

$stmt = sqlsrv_query( $conn, "SELECT * FROM Table_1");

if ($stmt) {
   $rows = sqlsrv_has_rows( $stmt );
   if ($rows === true)
      echo "There are rows. <br />";
   else 
      echo "There are no rows. <br />";
}
?>

参见

sqlsrv_num_rows() - Retrieves the number of rows in a result set
sqlsrv_query() - Prepares and executes a query

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