I am currently trying to pass a json object from ajax to php. But it does not get me anything..Below is my code. I already tried print_r[$_POST] it just returns Array(). What's wrong with this code?
This is my code: screenshot of my code
If ajax is sent with "GET" instead of "POST", you should use $ _GET in your code.
$.ajax({
type: "POST",
url: url,
data: data,
success: success,
dataType: dataType
});
Are you sure that the Type parameter is post?
or use
print_r($_GET);
Related
I'm using jstree on a project and attempting to save my tree to a database.
I'm obtaining the tree data as follows:
var tmp = $('#tree').jstree(true).get_json();
console.log(tmp);
This produces a JSON object in the console as I'd expect:
However when I post this to a PHP script using jquery...
$.ajax({
type: 'POST',
url: '/saveTree',
data: {'tree': tmp},
success: function(msg) {
console.log(msg);
}
});
... It is showing a PHP array of my data:
The script which I have at /saveTree displays the POST data in the tree array post key:
var_dump($this->request->data['tree']);
I assumed since the data I'm posting to the script is in JSON format I'd need to json_decode() it at the other end? If not, why not?
I've also tried adding dataType: 'json', in the ajax request but that makes no difference.
What's happening here?
Please note the PHP script at /saveTree is running in CakePHP 2.x so the line of PHP above is equivalent to var_dump($_POST['tree']) in regular PHP.
If you want send the data as string you can JSON.stringify(tmp);
tmp = JSON.stringify(tmp);
$.ajax({
type: 'POST',
url: '/saveTree',
data: {'tree': tmp},
success: function(msg) {
console.log(msg);
}
});
When I send serialised data to a PHP file using ajax, it is sometimes URL Encoded depending on how i do it.
Originally i had the following code which worked fine:
$.ajax({
type: 'POST',
url: 'ajax-process.php',
data: $("#sitestructure-form").serialize(),
success: function(d){$("#structureupdate").html(d);}
});
The data was sent to my PHP file and i could echo it and it looked like this.
[{"id":20,"children":[{"id":21}]},{"id":19},{"id":18,"children":[{"id":14}]},{"id":16},{"id":13,"children":[{"id":11}]},{"id":17},{"id":15},{"id":12}]
I wanted to send more than one piece of data, I called the serialized data 'order' and added 'process' to it so i updated my code to the following:
$.ajax({
type: 'POST',
url: 'ajax-process.php',
data: {
order: $("#sitestructure-form").serialize(),
process: "sitemap-reordernavigation"
},
success: function(d){$("#structureupdate").html(d);}
});
However when I retrieve the serialised data sent in 'order' the output looks like this:
data=%5B%7B%22id%22%3A20%2C%22children%22%3A%5B%7B%22id%22%3A21%7D%5D%7D%2C%7B%22id%22%3A19%7D%2C%7B%22id%22%3A18%2C%22children%22%3A%5B%7B%22id%22%3A14%7D%5D%7D%2C%7B%22id%22%3A16%7D%2C%7B%22id%22%3A13%2C%22children%22%3A%5B%7B%22id%22%3A11%7D%5D%7D%2C%7B%22id%22%3A17%7D%2C%7B%22id%22%3A15%7D%2C%7B%22id%22%3A12%7D%5D
The only way i can think of to fix this problem is to use php to urldecode it and then use str_replace to remove the 'data=' bit at the front, like so.
$data = str_replace("data=","",urldecode($_POST['order']));
How can I get this to work with AJAX though so i dont have to urldecode it?
Ive tried using a variable and setting the processData to false however that didn't seem to work.
var order = $("#sitestructure-form").serialize();
$.ajax({
type: 'POST',
url: 'ajax-process.php',
processData: false,
data: {
order: order,
process: "sitemap-reordernavigation"
},
success: function(d){$("#structureupdate").html(d);}
});
My knowledge of AJAX/Jquery is rather limited so any help would be greatly appreciated.
That's because you are feeding a serialized text string to the data attribute the first time around and jQuery does not convert it to a serialized string. The second you are assigning an object to the data attribute with the "order" attribute having the serialized text string, so jQuery basically double encodes it. For it to act as you'd like you would have to convert the form to an object and assign your "order" attribute to that object. See this post: Convert form data to JavaScript object with jQuery
// taking the example from the above link, you do this instead
order = $("#sitestructure-form"). serializeObject();
Fixed by doing the following:
$.ajax({
type: 'POST',
url: 'ajax-process.php?',
data: $("#sitestructure-form").serialize() + "&action=sitemap-reordernavigation",
success: function(d){$("#structureupdate").html(d);}
});
Okay I think I am going mad because I have done this a million times before and now I can't make it work. I am doing an ajax post to a PHP script with some simple JSON and then returning the JSON from my PHP, however it is currently showing $_POST as an empty array.
Here is my js:
$.ajax({
type: "POST",
url: "/account/book-promo.php",
data: '{"firstName":"Peter" , "lastName":"Jones"}',
success: function(response) {
console.log(response);
}
});
And my PHP:
<?php
var_dump($_POST);
exit;
Firebug shows that my request is using POST as it is supposed to and my data is being sent as JSON yet I am getting a response of:
array(0) {
}
The only thing I can think is that there is some kind of server settings that are preventing this from working, however I cant think why there would be. Maybe I have missed a bracket or something, it is driving me mad!
Any and all suggestions welcome!
send it like if you want to send it as json.
data: { data : '{"firstName":"Peter" , "lastName":"Jones"}' },
and if you want to send it as POST just remove quotes '
data: {"firstName":"Peter" , "lastName":"Jones"},
You have to do this:
$.ajax({
type: "POST",
dataType: "json", // <---------------its required if response is json
url: "/account/book-promo.php",
data: {"firstName":"Peter" , "lastName":"Jones"}, //<---instead of string send the object this way
success: function(response) {
console.log(response);
}
});
You said in your post retuning the JSON from my PHP:
so you need to use dataType:"json" and the data you are sending to your php should be sent as object (which is usually to be pair of key and values separated by : like {key:value}) as of your code you are sending a string.
I am trying to pass an array via ajax to a remote php script for execution.
This is a snippet from what i tried
$arr=["12","13"];
$.ajax({
url:"script.php",
data:{"arr":$arr}
success: function(data){console.log(data);},
error:function(data){console.log("error in xhr");},
complete:function(data){},cache: false,type: "POST",dataType: 'json'
})
<?php
$return['arr']=json_decode($_POST['arr']);
echo json_encode($return);
?>
I caught the error in firebug : json_decode() expects parameter 1 to be string, array given.
However when i process the same php script alone.. it works fine!
Where am i going wrong and what would be the best way to handle the array ?
Try this,
data:{"arr":JSON.stringify($arr)}
let me know is this helpfull?.
You need to use JSON.stringify to first serialize your object to JSON, and then specify the content-type so your server understands it's JSON.
$.ajax({
url: url,
type: "POST",
data: JSON.stringify(data),
contentType: "application/json",
complete: callback
});
I have a standard javascript ajax call where I'm setting the data: to json data.
$.ajax({
type: "POST",
url: BaseUrl + "User/Login",
//url: BaseUrl + "User/Limit/1/2",
data: '{"apiKey":"c7089786-7e3a-462c-a620-d85031f0c826","appIDGiven":"200","userName":"matt2","password":"pass"}',
success: function(data){
console.log(data);
},
error: function(request){
console.log(request);
},
});
I was trying to get the data in php $_POST["data"] this doesn't work.
However, data: 'test={"apiKey":"c7089786-7e3a-462c-a620-d85031f0c826","appIDGiven":"200","userName":"matt2","password":"pass"}' works.
I was wondering is it possibly my framework or anything like that preventing $_POST["data"] from working or is this just not possible at all? Or is there something else I could use to get that data?
EDIT:
So the framework YII and the extension Restfullyii has a method to get the data it is using one line
return json_decode(file_get_contents("php://input"), true);
Which is getting all the data without the need for data= or {data: However it seems to be returning an array so Im accessing my properties like $data["userName"] where a true json object should be $data->["userName"]. Correct me if I'm wrong on any of this am I getting array in this case because I'm really sending a json string? versus a json object?
EDIT x2:
So php is making it an assoc array because it is sending true to the json_decode..
I think problem with your code is in the line where you set data: '{....}'.
It should be in json format in order to be passed properly (though it also could be in string format but you'll need to parse it on the server side)
The code below should be working right:
$.ajax({
type: "post",
url: BaseUrl + "User/Login",
data: {"apiKey":"c7089786-7e3a-462c-a620-d85031f0c826","appIDGiven":"200","userName":"matt2","password":"pass"},
success: function(data){
console.log(data);
},
error: function(request){
console.log(request);
}
});
On the server side try: $_POST['apiKey'] $_POST['appIDGiven'] and so on.
data option must be an object or serialized(e.g. "name1=value1&name2=value2") string.So you need to pass like this:
data: /*object*/{data:'{"apiKey":"c7089786-7e3a-462c-a620-d85031f0c826","appIDGiven":"200","userName":"matt2","password":"pass"}'},
// ^-----this is added for $_POST["data"]
or like:
data: /*serialized string*/'data={"apiKey":"c7089786-7e3a-462c-a620-d85031f0c826","appIDGiven":"200","userName":"matt2","password":"pass"}',
// ^-----this is added for $_POST["data"]
First, the data sent must be a JSON object and not a string. Remove the quotes.
Also, in your server-side, you'll better decode the input $_POST['data'] with json_decode() (see documentaion)