downloads | documentation | faq | getting help | mailing lists | licenses | wiki | reporting bugs | php.net sites | conferences | my php.net

search for in the

mssql_execute> <mssql_connect
[edit] Last updated: Tue, 21 May 2013

view this page in

mssql_data_seek

(PHP 4, PHP 5, PECL odbtp >= 1.1.1)

mssql_data_seekSposta il puntatore di riga interno

Descrizione

bool mssql_data_seek ( resource $id_risultato , int $numero_riga )

Restituisce TRUE in caso di successo, FALSE in caso di fallimento.

La funzione mssql_data_seek() sposta il puntatore di riga, interno al risultato associato all'identificativo di risultato, alla riga indicata dall'argomento numero_riga, la prima riga inzia con il numero 0. La chiamata successiva a mssql_fetch_row() restituirĂ  la riga richiesta.



add a note add a note User Contributed Notes mssql_data_seek - [1 notes]
up
-1
phpcomments at hltools dot com
7 years ago
mssql_data_seek will return false AND trigger a warning ('Bad row offset') if you specify a row outside the result set.
You'll need to check beforehand if the row you are trying to seek to exists. Or you can supress the error and look for the false result, depending on your needs.

To check beforehand (where $result is the result fo your query and $seek is the row number you want to seek to):
<?php
$rowcount
= mssql_num_rows($result);
if (
$seek >= $rowcount)
{
    print (
"Trying to seek outside result set!");
}
else
{
    if (!
mssql_data_seek($result, $seek))
    {
        print (
"Seek failed");
    }
    else
    {
        print (
"Seek complete");
    }
}
?>

To have a 'simpler' way of handling errors by supressing the warning:
<?php
if (!@mssql_data_seek($result, $seek))
{
    print (
"Seek failed");
}
else
{
    print (
"Seek complete");
}
?>

 
show source | credits | sitemap | contact | advertising | mirror sites