从php函数获取价值到javascript

Question

I am stuck with getting an array from php function located in another file to a javascript. I used the below code but nothing is happening.

PHP code:

$sprd_array;
$spread = 0;
    foreach ($data as $key => $value) {
        $spread =(int) ($value->ask*100000) - ($value->bid * 100000);
        $spread =(float) $spread / 10000;
        $spread = round( $spread, 5, PHP_ROUND_HALF_UP);
        $sprd_array[] = $spread;
    }
    for($i = 0;$i < sizeof($sprd_array); $i++){
        //echo "spread: " . $sprd_array[$i] . "<br />";
    }
    return $sprd_array;
}

I want to get the array in another javascript file.

javascript code:

$.ajax({
    url:'jsondecode.php',
    complete: function (response) {
        alert("done");
    },
    error: function () {
        alert("error");
    }
});
return false;

Answer 1

Do it like

$.ajax({
      url:'jsondecode.php',
      dataType : json,
      success: function (data) {
         console.log(data); // This is the data you want.
      },
      error: function () {
          alert("error");
      }
  });