Php/docs/function.ingres-result-seek

来自菜鸟教程
跳转至:导航、​搜索

ingres_result_seek

(PECL ingres >= 2.1.0)

ingres_result_seekSet the row position before fetching data


说明

ingres_result_seek ( resource $result , int $position ) : bool

This function is used to position the cursor associated with the result resource before issuing a fetch. If ingres.array_index_start is set to 0 then the first row is 0 else it is 1. ingres_result_seek() can be used only with queries that make use of scrollable cursors. It cannot be used with ingres_unbuffered_query().

Note:

Related Configurations

See also the ingres.scrollable and ingres.array_index_start directives in Runtime Configuration.

参数

result
The result identifier for a query
position
The row to position the cursor on. If ingres.array_index_start is set to 0, then the first row is 0, else it is 1


返回值

成功时返回 true, 或者在失败时返回 false


范例

Example #1 Position the cursor on the 3rd row

<?php$result=ingres_query($link, "select * from airport where ap_ccode = 'ES' order by ap_place asc");/* goto row 3 */if (!ingres_result_seek($result, 3)){    echo ingres_errno() . " - " . ingres_error . "\n";    die("i died");}else{    $airport = ingres_fetch_object ($result);    {        echo $airport->ap_iatacode . " - " .  $airport->ap_name . "\n";    }}ingres_commit($link);?>

参见