title: How to create an array for JSON using PHP?
body: <p>From PHP code I want to create an json array:</p>
  
  <pre><code>[
    {"region":"valore","price":"valore2"},
    {"region":"valore","price":"valore2"},
    {"region":"valore","price":"valore2"}
  ]
  </code></pre>
  
  <p>How can I do this?</p>