sqlsrv_has_rows

(No version information available, might only be in Git)

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.

示例

示例 #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

发现了问题？

了解如何改进此页面 • 提交拉取请求 • 报告一个错误

＋添加备注

用户贡献的备注 1 note

down

Bin Ury ¶

7 years ago

This function cannot be relied on to report errors since both a existence negative and a SQL error will report the same boolean value.

＋添加备注

备份地址：http://www.lvesu.com/blog/php/function.sqlsrv-has-rows.php