javascript objects to json string to php array -> POST

Question

Hey guys i really need help with this. i pass this json object to php..

var x = {};
x.xt = {};
x.xt.id = id;
x.xt.to = foo;

somearray.push(x);

convert object to json:

$.toJSON(x);

json string:

[{"x":{"xt":"9","to":"2"}}]

them i post this:

$.post(
    "temp/sop.php",
    { xa: somearray},
    function(data){
        console.log("response - "+ data);
});

server side:

$xtj = $_POST["xa"];
$encodedArray = array_map(utf8_encode, $xtj);
$asnk = json_decode($encodedArray);

This returns:

string(4) "null"

and this:

$asnk = json_encode($xtj);

returns:

null

the data base it is set to:

UTF8

also when i test if it is an array, comes back true..

any idea how to solve this? thanks

also server side:

$xtj = $_POST["xa"];
$asnk = json_decode($xtj);

this returns:

NULL

Are you sure that $_POST["xa"] is an array? and utf8_encode should be inside quotes, otherwise php will throw a notice (or warning). — radalin
– radalin, Commented Apr 6, 2013 at 23:03
try: console.log(somearray); just before $.post, and var_dump($_POST['xa'); somewhere in the beginning of your php file. — meeDamian
– meeDamian, Commented Apr 6, 2013 at 23:05
if i echo the POST i get this: [{\"x\":{\"xt\":\"4\",\"to\":\"2\"}}] and console before $.post is this: [{"x":{"xt":"9","to":"2"}}] — Jorge Y. C. Rodriguez
– Jorge Y. C. Rodriguez, Commented Apr 6, 2013 at 23:06
What are you trying to do? Is sop.php just supposed to decode the JSON, re-encode it as JSON, and send it back or what? — icktoofay
– icktoofay, Commented Apr 6, 2013 at 23:14
sop.php it is just decoding JSON and passing the array to another method.But the thing it is. it worked fine on one server and local host. but when i moved to their final server it does not work.. even tho it does have the same settings — Jorge Y. C. Rodriguez
– Jorge Y. C. Rodriguez, Commented Apr 6, 2013 at 23:23

icktoofay · Accepted Answer · 2013-04-06 23:05:23Z

3

$.toJSON(x) does not do the conversion in-place; it returns the JSON, and you're just discarding it. You need this instead:

$.post(
    "temp/sop.php",
    { xa: $.toJSON(somearray) },
    // ...
});

Then, on the PHP side, you won't want array_map as it's not going to be an array until you decode the JSON:

$xtj = $_POST["xa"];
$encodedArray = utf8_encode($xtj);  // I'm not sure you need this, by the way.
$asnk = json_decode($encodedArray);

answered Apr 6, 2013 at 23:05

icktoofay

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4 Comments

Jorge Y. C. Rodriguez Over a year ago

i get this on the console after response in javascript: response - NULL

Jorge Y. C. Rodriguez Over a year ago

This is the what the POST recieve on the server: [{\"cart\":{\"itemid\":\"4\",\"itemAmount\":\"1\"}}] but after json_encode i get a null result maybe magic_quotes?

Jorge Y. C. Rodriguez Over a year ago

too good to be good, not luck with that :-/ can the server settings mess with this, besides magic_quotes

icktoofay Over a year ago

@jycr753: Maybe. I haven't dealt with PHP in a while; I can't think of what would do it off the top of my head.

nl-x · Accepted Answer · 2013-04-06 23:54:22Z

1

try using if(get_magic_quotes_gpc()) $xtj = stripslashes($xtj); to lose the excessive escaping before trying to decode.

answered Apr 6, 2013 at 23:54

nl-x

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2 Comments

Jorge Y. C. Rodriguez Over a year ago

thanks mate that totally work. still dont get it. i have magic quotes off :S

nl-x Over a year ago

guess not. try using phpinfo() to see which php.ini is actually being used (and to confirm that magic quotes is actually on). Then turn off the magic quotes in the php.ini.

nl-x · Accepted Answer · 2013-04-06 23:22:55Z

0

What you are doing is you are converting to json string in JS ($.toJSON()). And then in PHP you are again trying to convert to json string (json_encode()). And you are using array_map() on something that is not an array but a string. (Try echo $_POST["xa"]; to see the contents of it.)

answered Apr 6, 2013 at 23:22

nl-x

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1 Comment

Jorge Y. C. Rodriguez Over a year ago

my bad mate. just a miss spell :) but it is json_decode :) thanks for noticing it :)

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