PHP - json encode/decode process convert associative array to object

Question

i need to store php variables into files so i decide to serialize or jsonize (maybe jsonify XD) them.
For portability purpose i prefer json solution...
During test i notice associative array are json-decoded as object and i cant use it as associative array but i have to use as object.
Non-associative array are json-decoded correctly as non-associative array..
am i doing something wrong?
or just this is a normal behavior of php json functions

here the example code

$test = array("test1" => 1, "test2" => 2);

$json = json_decode(json_encode($test));

$serialize = unserialize(serialize($test));

//output -> stdClass::__set_state(array( 'test1' => 1, 'test2' => 2, ))
// cant access  to $json["test1"] as in $test but $json->test why?????
var_export($json);

//ouptut -> array ( 'test1' => 1, 'test2' => 2, )
//here i can $serialize["test1"] 
var_export($serialize);

Just use json_decode(json_encode($test), true);, you'll get an array instead of an object. — Dave Chen
– Dave Chen, Commented Jul 2, 2015 at 15:48

Luke · Accepted Answer · 2015-07-02 16:45:09Z

1

have you tried json_decode($test, true) ?

edited Jul 2, 2015 at 16:45

Luke

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answered Jul 2, 2015 at 15:49

Droid

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PHPhil · Accepted Answer · 2015-07-02 15:56:29Z

0

You can give set a second Parameter. When TRUE, returned objects will be converted into associative arrays. http://php.net/manual/en/function.json-decode.php

<?php
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';

var_dump(json_decode($json));
var_dump(json_decode($json, true));

?>

output:

object(stdClass)#1 (5) {
    ["a"] => int(1)
    ["b"] => int(2)
    ["c"] => int(3)
    ["d"] => int(4)
    ["e"] => int(5)
}

array(5) {
    ["a"] => int(1)
    ["b"] => int(2)
    ["c"] => int(3)
    ["d"] => int(4)
    ["e"] => int(5)
}

answered Jul 2, 2015 at 15:56

PHPhil

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1 Comment

user1954544 Over a year ago

and what about nested?

luk_z · Accepted Answer · 2015-07-03 12:43:42Z

0

yes i already use it...

if i use json_decode($test, true) works on associative array but wont work for object cause original object will be decoded as array...

So the problem is i must have the decoded variables as the original variables (for both case).

I encode my variables then store in a file then decode and i must access them in the same way i access the original, so if the original was associative array i must access it as associative array x["field"], if the original variables was a object i have to access as object x->field.

Serialize do the job, json no, thats my concern... maybe json is not thought for that purpose?

edited Jul 3, 2015 at 12:43

answered Jul 3, 2015 at 8:41

luk_z

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