Dynamic Web Pages: deutschsprachiger PHP Knotenpunkt seit 1999

Dynamic Web Pages : deutschsprachiges PHP-Handbuch : mysqli-fetch-array _

 
  PHP Architect  
  _  
 
<mysqli_execute mysqli_fetch_assoc>
Letzte Aktualisierung: Thu, 31 Jul 2014
 

mysqli_fetch_array

(PHP 5)

mysqli_fetch_array

(no version information, might be only in CVS)

result->fetch_array -- Fetch a result row as an associative, a numeric array, or both

Description

Procedural style:

mixed mysqli_fetch_array ( mysqli_result result [, int resulttype] )

Object oriented style (method):

class mysqli_result {

mixed fetch_array ( [int resulttype] )

}

Returns an array that corresponds to the fetched row or NULL if there are no more rows for the resultset represented by the result parameter.

mysqli_fetch_array() is an extended version of the mysqli_fetch_row() function. In addition to storing the data in the numeric indices of the result array, the mysqli_fetch_array() function can also store the data in associative indices, using the field names of the result set as keys.

Anmerkung: Feldnamen, die von dieser Funktion zurückgegeben werden, unterscheiden sich in der Groß-/Kleinschreibung.

Anmerkung: Diese Funktion setzt NULL Felder auf den PHP Wert NULL.

If two or more columns of the result have the same field names, the last column will take precedence and overwrite the earlier data. In order to access multiple columns with the same name, the numerically indexed version of the row must be used.

The optional second argument resulttype is a constant indicating what type of array should be produced from the current row data. The possible values for this parameter are the constants MYSQLI_ASSOC, MYSQLI_NUM, or MYSQLI_BOTH. By default the mysqli_fetch_array() function will assume MYSQLI_BOTH for this parameter.

By using the MYSQLI_ASSOC constant this function will behave identically to the mysqli_fetch_assoc(), while MYSQLI_NUM will behave identically to the mysqli_fetch_row() function. The final option MYSQLI_BOTH will create a single array with the attributes of both.

Rückgabewerte

Returns an array that corresponds to the fetched row or NULL if there are no more rows in resultset.

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 LIMIT 3";
$result = $mysqli->query($query);

/* numeric array */
$row = $result->fetch_array(MYSQLI_NUM);
printf ("%s (%s)\n", $row[0], $row[1]); 

/* associative array */
$row = $result->fetch_array(MYSQLI_ASSOC);
printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]); 

/* associative and numeric array */
$row = $result->fetch_array(MYSQLI_BOTH);
printf ("%s (%s)\n", $row[0], $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 LIMIT 3";
$result = mysqli_query($link, $query);

/* numeric array */
$row = mysqli_fetch_array($result, MYSQLI_NUM);
printf ("%s (%s)\n", $row[0], $row[1]); 

/* associative array */
$row = mysqli_fetch_array($result, MYSQLI_ASSOC);
printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]); 

/* associative and numeric array */
$row = mysqli_fetch_array($result, MYSQLI_BOTH);
printf ("%s (%s)\n", $row[0], $row["CountryCode"]); 

/* free result set */
mysqli_free_result($result);

/* close connection */
mysqli_close($link);
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

Kabul (AFG)
Qandahar (AFG)
Herat (AFG)


<mysqli_execute mysqli_fetch_assoc>
Letzte Aktualisierung: Thu, 31 Jul 2014
 


powered by Hetzner
top Alle Rechte vorbehalten. © Dynamic Web Pages 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 top

Werbung an/aus Werbung aus Werbung an