Memcache::add
(PECL memcache >= 0.2.0)
Memcache::add — Add an item to the server
Description
Memcache::add() stores variable
var
with key
only if such
key doesn't exist at the server yet.
Also you can use memcache_add() function.
Parameters
-
key
-
The key that will be associated with the item.
-
var
-
The variable to store. Strings and integers are stored as is, other types are stored serialized.
-
flag
-
Use
MEMCACHE_COMPRESSED
to store the item compressed (uses zlib). -
expire
-
Expiration time of the item. If it's equal to zero, the item will never expire. You can also use Unix timestamp or a number of seconds starting from current time, but in the latter case the number of seconds may not exceed 2592000 (30 days).
Return Values
Returns true
on success or false
on failure.
Returns false
if such key already exist. For the rest
Memcache::add() behaves similarly to
Memcache::set().
Examples
Example #1 Memcache::add() example
<?php
$memcache_obj = memcache_connect("localhost", 11211);
/* procedural API */
memcache_add($memcache_obj, 'var_key', 'test variable', false, 30);
/* OO API */
$memcache_obj->add('var_key', 'test variable', false, 30);
?>
See Also
- Memcache::set() - Store data at the server
- Memcache::replace() - Replace value of the existing item