title: MySQL - How to select rows where value is in array?
body: <p>Ok, normally I know you would do something like this if you knew the array values (1,2,3 in this case):</p>
  
  <pre><code>SELECT * WHERE id IN (1,2,3)
  </code></pre>
  
  <p>But I don't know the array value, I just know the value I want to find is 'stored' in the array:</p>
  
  <pre><code>SELECT * WHERE 3 IN (ids) // Where 'ids' is an array of values 1,2,3
  </code></pre>
  
  <p>Which doesn't work. Is there another way to do this?</p>