Parsing JSON File to array in PHP

php arrays json

PHP Snippet 1:

<?php
  $string = file_get_contents("./PHP/JSON/clicks.json");
  $json_a = json_decode($string);
  $cx = $json_a->cX;
  $cy = $json_a->cY;
?>

PHP Snippet 2:

$obj = $json_a["cX"];