mysqli_result::fetch_object
Remember that fetch() and fetch_row() are two different things, and differ in the way to use them.
- fetch() is used on a statement (like an executed prepared statement) and needs to be used in association with bind_result().
- fetch_row() is used on a result (like the result of query()).
As a consequence, if you want to use to use fetch_row() with an executed prepared statement, first you'll have to get the result out of this statement with mysqli_store_result() or mysqli_use_result().
mysqli_result::fetch_row
mysqli_fetch_row
(PHP 5)
mysqli_fetch_row — Get a result row as an enumerated array
Descrizione
Object oriented style (method):
Procedural style:
Fetches one row of data from the result set and returns it as an enumerated array, where each column is stored in an array offset starting from 0 (zero). Each subsequent call to this function will return the next row within the result set, or NULL if there are no more rows.
Elenco dei parametri
- result
-
Solo nello stile procedurale: un identificatore di resultset restituito da mysqli_query(), mysqli_store_result() o mysqli_use_result().
Valori restituiti
mysqli_fetch_row() returns an array of strings that corresponds to the fetched row or NULL if there are no more rows in result set.
Nota: Questa funzione imposta i campio NULL al valore PHP NULL.
Esempi
Example #1 Object oriented style
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 50,5";
if ($result = $mysqli->query($query)) {
/* fetch object array */
while ($row = $result->fetch_row()) {
printf ("%s (%s)\n", $row[0], $row[1]);
}
/* free result set */
$result->close();
}
/* close connection */
$mysqli->close();
?>
Example #2 Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 50,5";
if ($result = mysqli_query($link, $query)) {
/* fetch associative array */
while ($row = mysqli_fetch_row($result)) {
printf ("%s (%s)\n", $row[0], $row[1]);
}
/* free result set */
mysqli_free_result($result);
}
/* close connection */
mysqli_close($link);
?>
Il precedente esempio visualizzerà:
Pueblo (USA) Arvada (USA) Cape Coral (USA) Green Bay (USA) Santa Clara (USA)
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User Contributed Notesmysqli_result::fetch_row
evangun2001 at yahoo dot fr
16-Sep-2007 02:24
16-Sep-2007 02:24
Stephen
23-Jan-2007 02:29
23-Jan-2007 02:29
It's worth noting that the MySQLi functions (and, I presume, the MySQL functions) fetch a string regardless of the MySQL data type. E.g. if you fetch a row with an integer column, the corresponding value for that column and row will still be stored as a string in the array returned by mysql_fetch_row.
maillist at pnpitalia.it
06-Jan-2004 10:01
06-Jan-2004 10:01
from "README.PHP4-TO-PHP5-THIN-CHANGES"
4. Be careful when porting from ext/mysql to ext/mysqli. The following
functions return NULL when no more data is available in the result set
(ext/mysql's functions return FALSE).
- mysqli_fetch_row()
- mysqli_fetch_array()
- mysqli_fetch_assoc()