title: Real code in dynamic programming with problems like knapsack in PHP
body: <p>Are there any resources where I could find real code which solves problems in Dynamic Programming like knapsack problem and so on in PHP?</p>
  
  <p>I want to analyze code by myself, because I can't quite understand theory. And I can't find any code in Google.</p>
  
  <p>Thank you very much.</p>