ibase_fetch_object
If you have a query
"select ... from table1 where ..."
and would like to know the cardinality of the result set by issuing a separate query
"select count(*) from table1 where ..."
then you might end up with an incorrect value since an insert or delete can occur between the running of these queries (unlikely, but possible).
The only way i can think of getting the correct value would be something along the lines of
<?php
$qry = "select ... from table1 where ...";
$result = ibase_query($tr, $qry) // assume $tr is a transaction
$count = 0;
while ($row[$count] = ibase_fetch_assoc($result))
$count++;
?>
then $count is the cardinality, and $row the result set.
Then you can work with the result set:
<?php
for ($i = 0; $i < $count; $i++)
{
// do something with $row[$i]
}
?>
ibase_fetch_row
(PHP 4, PHP 5)
ibase_fetch_row — Elabora una riga da un database InterBase
Descrizione
array ibase_fetch_row
( int $result_identifier
)
Restituisce un array che corrisponde alla riga ottenuta o FALSE se non ci sono righe rimanenti.
ibase_fetch_row() prende una riga di dati dai risultati associati allo specificato result_identifier . La riga viene restituita come un array. Ogni colonna risultante viene immagazzinata in un offset dell'array, l'offset inizia da 0.
Chiamate successive a ibase_fetch_row() restituiscono la successiva riga dai risultati della query o FALSE se non vi sono ulteriori righe.
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User Contributed Notesibase_fetch_row
richard at wojthegame dot com
16-Mar-2006 06:06
16-Mar-2006 06:06
gurroa at gurroa dot cz
08-Jul-2003 12:41
08-Jul-2003 12:41
I had some troubles with moving php application from one dbase to another. From SyBase to Interbase.
Especially with missing function "ibase_num_rows($result)".
These are functions that helped me.
<?php
...
$dbh = ibase_connect ($host, $username, $password);
...
$ar_count_queries = array();
function ibasequery($query) {
$cquery = preg_replace("/SELECT(.*?)FROM(.*?)/","SELECT COUNT(*) FROM \\2",$query);
if ($cquery != $query) {
$crow=get_object_vars( ibase_fetch_object( ibase_query( $GLOBALS["dbh"], $cquery ) ) );
}
@$res = ibase_query($GLOBALS["dbh"],$query);
if (isset($res)) {
if (isset($crow)) {
$GLOBALS["ar_count_queries"][$res] = $radcountselect["COUNT"];
}
return $res;
}
return false;
}
function ibasenumrows($result) {
return $GLOBALS["ar_count_queries"][$res];
}
function ibasefetchrow($result) {
return get_object_vars(ibase_fetch_object($result));
}
// example
$result = ibasequery("SELECT * FROM TABLE");
$numrows = ibasenumrows($result);
echo "Number of rows: $numrows.\nContent: \n";
while ($onerow = ibasefetchrow($res)) {
foreach($onerow as $key => $value) {
echo $key.": ".$value.", ";
}
echo "\n";
}
?>
Gurroa