sismembermulti.html

---
title: sismembermulti
brief: Check for membership in any number of sets.
updated: 2014-07-30 18:44
layout: script
sha: 140053a7dc99e7d4f095f8723befa934dbc3430a
return: 1 if the key is found, 0 if not
---

<strong>Keys: any number</strong>
<ul class="args">
  <li>1..n: Sets to check for membership.</li>
</ul>

<strong>Args: 1</strong><br>
<ol class="args">
  <li>a value to check for</li>
</ol>

<h2>Example</h2>

<pre class="script-example">
> sadd users alice bob
(integer) 2
> sadd admin jenny
(integer) 1
> evalsha 140053a7dc99e7d4f095f8723befa934dbc3430a 2 users admin alice
(integer) 1
> evalsha 140053a7dc99e7d4f095f8723befa934dbc3430a 3 users admin guests jenny
(integer) 1
> evalsha 140053a7dc99e7d4f095f8723befa934dbc3430a 2 users admin abner
(integer) 0
</pre>

<h2>Source</h2>

<pre class="script-source">
-- Is an item in any of several sets? Call with:
-- EVALSHA <hash> n set1 set2 ... setn key
for i=1,#KEYS do
   if redis.call('sismember', KEYS[i], ARGV[1]) == 1 then
      return 1
   end
end
return 0
</pre>