SDK
SDK PHP v3.x
1

# lpushx

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

[Redis documentation]


# 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

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

Callback response:

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