title: Reg Exp - preg_match_all reduce array result
body: <p>This is my Reg Exp "[c]?[\d+|\D+]\s*". My input is this "c7=c4/c5*100" and the result is : </p>
  
  <pre>
  Array
  (
      [0] => Array
          (
              [0] => c7
              [1] => =
              [2] => c5
              [3] => +
              [4] => c3
              [5] => *
              [6] => 1
              [7] => 0
              [8] => 0
          )
  )
  </pre>
  
  <p>But what I want is:</p>
  
  <pre>
  Array
  (
      [0] => Array
          (
              [0] => c7
              [1] => =
              [2] => c5
              [3] => +
              [4] => c3
              [5] => *
              [6] => 100
          )
  
  )
  </pre>
  
  <p>I can't seem to get the last part working, I'm lost as what to do next - Can anyone help?</p>
  
  <p>Thanks,
  Paul</p>