angularjs - POST an array of objects(JSON data) to a PHP page - php

Question

An example of how my JSON data is like:
$scope.a = [{
"email": "keval#gmail",
"permissions": {
"upload": "1",
"edit": "1"
}
}, {
"email": "new#aa",
"permissions": {
"upload": "1",
"edit": "1"
}
}];
I want to post the same, and here's my approach:
$http({
method: 'POST',
url: 'backend/savePermissions.php',
data: {
mydata: $scope.a
},
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
})
.success(function(data) {
console.log(data);
});
And the PHP is to take the request and respond:
echo $_POST['mydata'];
I tried JSON.stringify before the call and json_decode while echoing it back; still didn't work. Been trying all the possibilities I can think of, and what I find on the web/other questions, but still not working.

Answer 1

I've made plnkr for you
http://plnkr.co/edit/K8SFzQKfWLffa6Z4lseE?p=preview
$scope.postData = function () {
$http.post('http://edeen.pl/stdin.php', {user:$scope.formData}).success(
function(data){
$scope.response = data
})
}
as you can see I'm sending a raw JSON without formating it, then in php
<?php
echo file_get_contents('php://input');
I read the JSON directly and echo it but you can do whatever you want
read more about php://input here http://php.net/manual/en/wrappers.php.php
I was using it for a long time for REST services to avoid transforming JSON to string to many times

Answer 2

I use this, with which I can send Array JSON:
var array = {}
array['key1'] = value1;
array['key2'] = value2;
$http.post(URL, array)
.success(function(data){
})
.error(function(){
});

Answer 3

try using $httpParamSerializer or $httpParamSerializerJQLike
$http({
method: 'POST',
url: 'backend/savePermissions.php',
data: $httpParamSerializer($scope.a),
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
}
})
.success(function(data) {
console.log(data);
});