Re: [GENERAL] Re: Bad column offset?

Поиск
Список
Период
Сортировка
От Paulo Parola
Тема Re: [GENERAL] Re: Bad column offset?
Дата
Msg-id 004801be4868$79263ba0$0300000a@cpqivx-2
обсуждение исходный текст
Список pgsql-general
Дерево обсуждения 
>>
>> I get the following error:
>>
>>   Warning: Bad column offset specified in
>> /usr/local/etc/httpd/htdocs/myscript.php3 on line 60
>
>The problem is probably with your column labels in the select statement,
which you have not provided in your original message. In this case
"htl.nom_htl" should be listed in the select statement. Also notice that
although PostgreSQL is case insensitive, the PHP function "pg_result" is
not. So, if
>you have a query like
>
>   $result = pg_exec( $pgconn, "select Test from ..." )
>
>you will have the same
>
>  Warning: Bad column offset ...
>
>if you try
>
>   $temp = pg_result($result, $i, "Test");
>
>The correct answer may be obtained with the lowercase column label
>
>   $temp = pg_result($result, $i, "test");


Check out the following test example I have made which gives me the same
error. Note that the name of the table is 'htl' in lowercase and the
selected field is 'nom_htl', also lowercase. So there is no type mismatch in
terms of lowercase/uppercase. Note also that elements are indeed returned
from this query.

---------------------------------------------
<?
if ( !($pgconn = pg_connect("localhost", "5432", "", "", "testdb")) )
{
 echo "Bad connection to database!<p>Sorry<p>.\n";
}
else
{
      echo "<body>\nConnection OK.<br><br>\n";
      $result = pg_exec( $pgconn, "select htl.nom_htl from htl where
htl.des_det_htl='s'" ) or die("Query formatted wrong!");

      $number_of_records = pg_numrows( $result );

      echo "Number of elements returned: $number_of_records<br>";

      if ($number_of_records==0)
        echo "<p>No records matching your criteria were found. ";

      if ($number_of_records!=0) {
        $i=0;
        $temp = pg_result($result, $i, "htl.nom_htl");
        echo "<br>Field 'nom_htl' of first element returned: ";
        echo "$temp";
      }

      if ( !pg_close( $pgconn ) )
        echo "<!-- Bad Close.-->\n";
}

echo "<br><br>End of page";
echo "</body>";
?>
---------------------------------------------

The output of this script printed to the screen is the following:

---------------------------------------------
Connection OK.

Number of elements returned: 63

Warning: Bad column offset specified in
/usr/local/etc/httpd/htdocs/myscript.php3 on line 21

Field 'nom_htl' of first element returned:

End of page
---------------------------------------------


Now, any tips on what's going wrong here?

TIA,

Paulo Parola
pparola@brazilinfo.com

В списке pgsql-general по дате отправления: