using php array that was created via $.post

Question

I created a jQuery array of objects:

my_family = [
person {
 name = “nick”,
 age = 41,
 role = “dad”
},
person {
 name = “john”,
 age = 4,
 role = “son”
},
person {
 name = “sarah”,
 age = 31,
 role = “mom”
},
]

I am trying to post this to the same page via post as a php array, which I have done successfully :

$.post("http://www.samepage.com", {my_family: my_family});

I then want to use this data, but when I try to add it to a variable or manipulate it in any way the page is not responding. when I use the following code, I can see it in my firebug as printed into the html, but I can not add it to variables or anything, how come? this is what I use to see it in html:

print_r ($_POST['my_family']);

furthermore it doesnt print to the page with the name "my_family" but just "Array". My main goal is to loop though the array and store each "age" value into a new array. is what Im doing possible via the post method?

I updated print_r ($_POST['my_family']);, mistake when trying to simplify the question for this post — nick
– nick, Commented Dec 9, 2015 at 2:25
are those “ ” curly quotes really part of your code? if so, that will break your code. Use regular quotes "var". — Funk Forty Niner
– Funk Forty Niner, Commented Dec 9, 2015 at 3:01

David Fang · Accepted Answer · 2015-12-09 02:32:03Z

1

If you are POSTing some more complex data, you could try JSON.stringify that data, send it, and then decode it in PHP.

In JavaScript:

$.post("http://www.samepage.com", {my_family: JSON.stringify(my_family)});

In PHP:

$my_family = json_decode($_POST['my_family'], true);
print_r($my_family);

// And if you're storing 'age' values into a new array
$age_values = array();
foreach($my_family as $person) {
    array_push($age_values, $person['age']);
}

answered Dec 9, 2015 at 2:32

David Fang

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2 Comments

David Fang Over a year ago

Sorry, I've edited the PHP code because of some of my misunderstand of json_decode.

nick Over a year ago

I think im having a problem with the first line of php, maybe my array is not compatible with the php array? here is what my array looks like after I post it with JSON.stringify: [{\"final_user_id\":\"1\",\"final_name_id\":\"1\",\"final_nametype\":\"spanish\",\"final_price \":\"33\",\"final_return\":\"1.8\"}]

Jas · Accepted Answer · 2015-12-09 02:40:39Z

1

Here it appears that you are trying to read data as a POST which is not a form-posted, $_POST is a just a wrapper for data which is either for

application/x-www-form-urlencoded (content type for simple form-posts) OR
multipart/form-data-encoded (for file uploads)

here basically you may want to read the JSON as raw input to php. // in your php file..

$data = json_decode(file_get_contents('php://input'));
print_r ( $data);

answered Dec 9, 2015 at 2:40

Jas

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