sqlsrv_fetch
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sqlsrv_fetch — Makes the next row in a result set available for reading
说明
$stmt
[, int $row
[, int $offset
]] )Makes the next row in a result set available for reading. Use sqlsrv_get_field() to read the fields of the row.
参数
-
stmt -
A statement resource created by executing sqlsrv_query() or sqlsrv_execute() .
-
row -
The row to be accessed. This parameter can only be used if the specified statement was prepared with a scrollable cursor. In that case, this parameter can take on one of the following values:
- SQLSRV_SCROLL_NEXT
- SQLSRV_SCROLL_PRIOR
- SQLSRV_SCROLL_FIRST
- SQLSRV_SCROLL_LAST
- SQLSRV_SCROLL_ABSOLUTE
- SQLSRV_SCROLL_RELATIVE
-
offset -
Specifies the row to be accessed if the row parameter is set to
SQLSRV_SCROLL_ABSOLUTEorSQLSRV_SCROLL_RELATIVE. Note that the first row in a result set has index 0.
返回值
Returns TRUE if the next row of a result set was successfully retrieved,
FALSE if an error occurs, and NULL if there are no more rows in the result set.
范例
Example #1 sqlsrv_fetch() example
The following example demonstrates how to retrieve a row with sqlsrv_fetch() and get the row fields with sqlsrv_get_field() .
<?php
$serverName = "serverName\sqlexpress" ;
$connectionInfo = array( "Database" => "dbName" , "UID" => "username" , "PWD" => "password" );
$conn = sqlsrv_connect ( $serverName , $connectionInfo );
if( $conn === false ) {
die( print_r ( sqlsrv_errors (), true ));
}
$sql = "SELECT Name, Comment
FROM Table_1
WHERE ReviewID=1" ;
$stmt = sqlsrv_query ( $conn , $sql );
if( $stmt === false ) {
die( print_r ( sqlsrv_errors (), true ));
}
// Make the first (and in this case, only) row of the result set available for reading.
if( sqlsrv_fetch ( $stmt ) === false ) {
die( print_r ( sqlsrv_errors (), true ));
}
// Get the row fields. Field indeces start at 0 and must be retrieved in order.
// Retrieving row fields by name is not supported by sqlsrv_get_field.
$name = sqlsrv_get_field ( $stmt , 0 );
echo " $name : " ;
$comment = sqlsrv_get_field ( $stmt , 1 );
echo $comment ;
?> 参见
- sqlsrv_get_field() - Gets field data from the currently selected row
- sqlsrv_fetch_array() - Returns a row as an array
- sqlsrv_fetch_object() - Retrieves the next row of data in a result set as an object