This method emits this php warning if OPT_COMPRESSION is not explicitly set to false (tested with libmemcached 1.0.18 & pecl-memcached 2.1.0):
PHP Warning: Memcached::append(): cannot append/prepend with compression turned on
(PECL memcached >= 0.1.0)
Memcached::append — Append data to an existing item
Memcached::append() appends the given
value
string to the value of an existing item. The
reason that value
is forced to be a string is
that appending mixed types is not well-defined.
Hinweis:
If the
Memcached::OPT_COMPRESSION
is enabled, the operation will fail and a warning will be issued, because appending compressed data to a value that is potentially already compressed is not possible.
key
Der Schlüssel, unter dem der Wert abgelegt werden soll.
value
The string to append.
Gibt bei Erfolg true
zurück. Bei einem Fehler wird false
zurückgegeben.
Returns null
when compression is on.
Returns null
and raises an E_WARNING
when
compression is enabled.
Beispiel #1 Memcached::append() example
<?php
$m = new Memcached();
$m->addServer('localhost', 11211);
$m->setOption(Memcached::OPT_COMPRESSION, false);
$m->set('foo', 'abc');
$m->append('foo', 'def');
var_dump($m->get('foo'));
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
string(6) "abcdef"
This method emits this php warning if OPT_COMPRESSION is not explicitly set to false (tested with libmemcached 1.0.18 & pecl-memcached 2.1.0):
PHP Warning: Memcached::append(): cannot append/prepend with compression turned on