title: Insert multiple rows into mysql (items separated by comma)
body: <p>I have a small problem :) I was searching the web but didn't find any solutions.</p>
  
  <p>I have a value like this (got it from $_GET[])</p>
  
  <p>tag1, tag2, tag3, tag4</p>
  
  <p>and all I want to do is insert it into MySql (via PHP) like this:</p>
  
  <pre>
  +---------+-------------+
  |      id |         tag |
  +---------+-------------+
  |      33 |        tag1 |
  |      33 |        tag2 |
  |      33 |        tag3 |
  |      33 |        tag4 |
  +---------+-------------+
  </pre>
  
  <p>I found many articles about this on Stack Overflow but the biggest problem here is that I don't know how many values I'm gonna get each time (I did not find that answer).</p>
  
  <p>I will appreciate any help I get.</p>