PHP / JSON - echo stdClass object when property name is number

Question

I have stored a JSON ouput into as a stdClass object using json_decode.

Ideally I want to echo the property names and values for the histogram object.

I tried

echo $obj->histogram->20000();

but it doesn't seem to recognise 20000 because it's a number. Also tried '20000'.

JSON code:

{
  "location": {
    "__CLASS__": "Adzuna::API::Response::Location",
    "display_name": "Melbourne, Melbourne Region",
    "area": [
      "Australia",
      "Victoria",
      "Melbourne Region",
      "Melbourne"
    ]
  },
  "__CLASS__": "Adzuna::API::Response::SalaryHistogram",
  "histogram": {
    "20000": 2,
    "40000": 36,
    "60000": 95,
    "80000": 53,
    "100000": 27,
    "120000": 9,
    "140000": 6
  }
}

Solved it echo $json_obj->histogram->{'20000'};

josh_mam
– josh_mam

2015-11-09 03:45:48 +00:00
Commented Nov 9, 2015 at 3:45 — josh_mam
– josh_mam, Commented Nov 9, 2015 at 3:45

Sverri M. Olsen · Accepted Answer · 2015-11-09 04:12:53Z

1

In PHP variables and class members can be just about anything, but in your PHP code they have to basically start with a normal ASCII alphabetic character or underscore (more specifically [a-zA-Z_\x7f-\xff], but in practice no one uses all the characters in that range).

To access variables that cannot be accessed using the $var format you have to use variable variables:

$name = "1twøThré3";
$value = $$name;

That is the "normal" way to use variable variables. Another way is to pass the name directly to the variable identifier:

$value = ${"1twøThré3"}

The same applies to object members:

$value = $obj->{"1twøThré3"};

answered Nov 9, 2015 at 4:12

Sverri M. Olsen

13.2k3 gold badges38 silver badges54 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

PHP / JSON - echo stdClass object when property name is number

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related