GoLang Memcached::prepend

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PHP Memcached::prepend

PHP original manual for Memcached::prepend [ show | php.net ]

Memcached::prepend

(PECL memcached >= 0.1.0)

Memcached::prepend — Prepend data to an existing item

Description

public bool Memcached::prepend ( string $key , string $value )

Memcached::prepend() prepends the given 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_COMPRESSION is enabled, the operation will fail and a warning will be issued, because prepending compressed data to a value that is potentially already compressed is not possible.

Parameters

key

The key of the item to prepend the data to.

value

The string to prepend.

Return Values

Returns TRUE on success or FALSE on failure. The Memcached::getResultCode() will return Memcached::RES_NOTSTORED if the key does not exist.

Examples

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->get('foo'));
?>

The above example will output:

string(6) "defabc"

See Also