Can't print the json from ajax post using json_decode - php

Question

I am using ajax to post data to a php script for work to be done... Basically, I'm taking all the form variabes, and creating json... Then taking this json and sending it to the controller script:
function createJSON() {
jsonObj = [];
$("input[class=form-control]").each(function() {
var id = $(this).attr("id");
var value = $(this).val();
item = {}
item [id] = value;
jsonObj.push(item);
});
jsonData = JSON.stringify(jsonObj);
var request = $.ajax({
url: "../../../../ajax/signupController.php",
type: "POST",
data: jsonData,
dataType: "html"
});
request.done(function( msg ) {
console.log(msg);
});
request.fail(function( jqXHR, textStatus ) {
alert( "Request failed: " + textStatus );
});
}
My code gets to the php script fine, and when I use "print_r" in php to print the output, I get this:
Array
(
[0] => stdClass Object
(
[mail-firstname] => FName
)
[1] => stdClass Object
(
[mail-lastname] => Lname
)
)
My problem is, I can't GET AT the elements... I have tried:
$data = json_decode(file_get_contents('php://input'));
foreach ($data as $key => $value) {
print "<p>$key | $value</p>";
}
but I can't get at the array elements... I get an error... What am I missing about accessing the array after decoding the file contents?
Thanks.
Update:
Modified foreach:
foreach($data as $key=>$value){
print $value->ccyear;//now I can get at individual elements
}
BUT ANY VALUE THAT HAS A DASH IS CAUSING THE SCRIPT TO FAIL... For example, if the name is "mail-firstname" PHP thinks it's mail AND firstname...

Answer 1

The problem is that your values are nested an extra level in your data. And they each have different keys, so it's hard to get at them. It would be better if you use the id as the keys of the top-level array, rather than nesting them:
jsonObj = {};
$("input[class=form-control]").each(function() {
var id = this.id
var value = this.value;
jsonObj[id] = value;
});
Then you should change your PHP to use the second argument to json_decode(), so you get an associative array instead of a stdClass object:
$data = json_decode(file_get_contents('php://input', true));
I'm not really sure why you need to send JSON. Why not just use:
data: jsonObj;
Then you can access the inputs as $_POST['mail-firstname'], etc.