How to request an array of PHP objects from jQuery Ajax? - php

Question

I want to pass through an array of "Blocks" with Ajax. I created "Blocks" with a PHP class: I know how to pass an array with numbers, with JSON, but I dont know how to pass an array with objects.
Will I have to recreate a class in Javascript that mimiks the "Blocks" class and then pass every value through?
class RequirementsEntity {
public $num;
public $name;
function __construct($num, $field, $name, $desc, $bool) {
$this->num = $num;
$this->name = $name;
My code for PHP:
$result = [];
while ($row = mysql_fetch_array($query)) {
$num = $row[0];
$name = $row[1];
$ablock = new BlockEntity($num, $name);
array_push($result, $arequirement);
}
echo json_encode($result);
My code for jQuery:
$('#selProgram').on('change', function() {
var id = this.value;
if (id != "None") {
$.ajax({
type: "POST",
url: "assets/php/fetch_req.php",
data: "id="+id,
datatype: "json"
success: function(data) {
alert(data);
GenerateRequirements(data, 1);
}
});
}
});

Answer 1

From the php.net docs
The JSON standard only supports these values when they are nested inside an array or an object.
json_encode turns the variables from an object into JSON variables, so if you save the name and number in the BlockEntity object they would show up.

Answer 2

With the help of the responses, if anyone in the future has the same issue, you should:
Call Ajax with a parameter data-type: "json", and making sure to parse the data after you receive it:
$('#selProgram').on('change', function() {
var id = this.value;
if (id != "None") {
$.ajax({
type: "POST",
url: "assets/php/fetch_req.php",
data: "id="+id,
datatype: "json",
success: function(data) {
JSON.parse(data)
}
});
}
});
Also, encode into JSON when sending with php:
echo json_encode($result);
Thanks!
This helped a lot How to return an array from an AJAX call?