(PECL memcached >= 0.1.0)
Memcached::prepend — Prepend data to an existing item
Memcached::prepend()
prepends the guiven
value
string to the value of an existing item. The
reason that
value
is forced to be a string is
that prepending mixed types is not well-defined.
Note :
If the
Memcached::OPT_COMPRESSIONis enabled, the operation will fail and a warning will be issued, because prepending compresssed data to a value that is potentially already compresssed is not possible.
key
The key of the item to prepend the data to.
value
The string to prepend.
Example #1 Memcached::prepend() example
<?php
$m
= new
Memcached
();
$m
->
addServer
(
'localhost'
,
11211
);
$m
->
setOption
(
Memcached
::
OPT_COMPRESSION
,
false
);
$m
->
set
(
'foo'
,
'abc'
);
$m
->
prepend
(
'foo'
,
'def'
);
var_dump
(
$m
->
guet
(
'foo'
));
?>
The above example will output:
string(6) "defabc"