title: phpredis: BITOP + php implode - not working
body: <p>I have an array</p>
  
  <p><code>$array = array("dresses","suits");</code></p>
  
  <p>When I try to make BITOP using phpredis</p>
  
  <pre><code>$value = implode(",",$array);
  $redis-&gt;bitOp('AND','color',$value);
  echo $redis-&gt;bitcount('color');
  </code></pre>
  
  <p>I get 0. Also tried</p>
  
  <pre><code>$value = "'".implode("','",$array)."'";
  </code></pre>
  
  <p>with no result. But when I make</p>
  
  <pre><code>$redis-&gt;bitOp('AND','color','dresses','suits');
  echo $redis-&gt;bitcount('color');
  </code></pre>
  
  <p>everything is fine. It gives 30 to me</p>
  
  <p>How to solve this?</p>