PHP Dokumentation: Mysqli-result fetch-assoc
12. Januar 2010 von werner
mysqli_result::fetch_assoc
mysqli_fetch_assoc
(PHP 5)
mysqli_result::fetch_assoc — mysqli_fetch_assoc — Fetch a result row as an associative array
Beschreibung
Object oriented style (method):
Procedural style:
Returns an associative array that corresponds to the fetched row or NULL if there are no more rows.
Hinweis: Feldnamen, die von dieser Funktionzurückgegeben werden, unterscheiden sich in derGroß-/Kleinschreibung.
Hinweis: Diese Funktion setzt NULL-Felderauf den PHP Wert-NULL.
Parameter-Liste
- result
Nur bei prozeduralem Aufruf: Ein vonmysqli_query(), mysqli_store_result()oder mysqli_use_result() zurückgegebenesErgebnisobjekt.
Rückgabewerte
Returns an associative array of strings representing the fetched row in the result set, where each key in the array represents the name of one of the result set's columns or NULL if there are no more rows in resultset.
If two or more columns of the result have the same field names, the last column will take precedence. To access the other column(s) of the same name, you either need to access the result with numeric indices by using mysqli_fetch_row() or add alias names.
Beispiele
Beispiel #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 associative array */
while ($row = $result->fetch_assoc()) {
printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]);
}
/* free result set */
$result->close();
}/* close connection */
$mysqli->close();
?>Beispiel #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_assoc($result)) {
printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]);
}
/* free result set */
mysqli_free_result($result);
}/* close connection */
mysqli_close($link);
?>Das oben gezeigte Beispiel erzeugt folgendeAusgabe:
Pueblo (USA)Arvada (USA)Cape Coral (USA)Green Bay (USA)Santa Clara (USA)
Siehe auch
- mysqli_fetch_array() – Fetch a result row as an associative, a numeric array, or both
- mysqli_fetch_row() – Get a result row as an enumerated array
- mysqli_fetch_object() – Returns the current row of a result set as an object
- mysqli_query() – Performs a query on the database
- mysqli_data_seek() – Adjusts the result pointer to an arbitary row in the result
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