lpushx #

Prepends the specified value to a list, only if the key already exists and if it holds a list.

lpushx(key, value, [options], [callback]) #

Arguments	Type	Description
`key`	string	Key identifier
`value`	array	Value to add at the beginning of the list
`options`	JSON Object	Optional parameters
`callback`	function	Callback

Options #

Option	Type	Description	Default
`queuable`	boolean	Make this request queuable or not	`true`

Return Value #

Returns the MemoryStorage object to allow chaining.

Callback Response #

Returns an integer containing the updated number of items in the list.

Usage #

<?php
use \Kuzzle\Kuzzle;
$kuzzle = new Kuzzle('localhost');
try {
  $count = $kuzzle->memoryStorage()->lpushx('key', 'foo');
}
catch (ErrorException $e) {
}

Callback response:

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