AngularJS not sending data via POST

Question

I'm trying to save to JSON some form data via AngularJS $http.post but somehow it isn't working. The idea is pretty simple: I have a form with three fields, an AngularJS data-binding and a pretty simple PHP code to save it to a file. Somehow it isn't working because the PHP file doesn't get any input apparently, so it always stores null .

Here is the code:

HTML Form:

<form class="form-horizontal">
    <div class="form-group">
        <label for="title" class="col-sm-2 control-label">Title:</label>
        <div class="col-md-4">
            <input type="text" class="form-control" id="title" ng-model="book.title" placeholder="Title">
        </div>
    </div>
    <div class="form-group">
        <label for="pages" class="col-sm-2 control-label">Pages:</label>
        <div class="col-md-1">
            <input type="number" class="form-control input-sm" id="pages" ng-model="book.pages" placeholder="0">
        </div>
    </div>
    <div class="form-group">
        <label for="readPages" class="col-sm-2 control-label">Read pages:</label>
        <div class="col-md-1">
            <input type="number" class="form-control input-sm" id="readPages" ng-model="book.readPages" placeholder="0">
        </div>
    </div>
    <button class="btn btn-primary glyphicon glyphicon-floppy-save" ng-click="save()"></button>
</form>

The JS code:

angular.module('book', [
    'ui.router'
])
    .config(function config($stateProvider) {
        $stateProvider.state('book', {
            url: '/book',
            views: {
                "main": {
                    controller: 'Book',
                    templateUrl: 'ui/views/book.tpl.html'
                },
                "header": {
                    templateUrl: 'ui/views/header.tpl.html'
                },
                "footer": {
                    templateUrl: 'ui/views/footer.tpl.html'
                }
            },
            data: {pageTitle: 'Book Status'}
        });
    })

    .controller('Book',
    function ($scope, $http) {
        $scope.book = {};
        $scope.error = "";

        $scope.save = function() {
            console.log($scope.book);
            $http.post('save/book.php', $scope.book).then(function(response) {
                // log success
                console.log("Guardado con éxito.");
                console.log(response);
              });
        };
});

And the PHP code:

$data = file_get_contents("php://input");
$inp = file_get_contents('../data/books.json');

$tempArray = json_decode($inp);
$tempData = json_decode($data);
array_push($tempArray, $tempData);
$jsonData = json_encode($tempArray);
$file = fopen('../data/books.json','w+');
fwrite($file, $jsonData);
fclose($file);
echo $jsonData;

So, apparently everything is correct, but I'm getting this response:

( ! ) Warning: array_push() expects parameter 1 to be array, null given in C:\\wamp\\www\\angulardemos\\save\\book.php on line 7

Which tells me that the input is incorrect, so I'm not actually sending any data. What am I missing?

Answer 1

easy $tempArray is null add var_dump to debug it

$tempArray = $tempArray = json_decode($inp, true);
$tempData = json_decode($data);
array_push($tempArray, $tempData);

You can also try:

$tempArray[]=$tempData;

Answer 2

Remove book from ng-model and make it to <input type="text" class="form-control" id="title" ng-model="title" placeholder="Title">

likewise for all.. and in the save function var dataObj = { title: $scope.title, pages: $scope.pages
} var dataObj = { title: $scope.title, pages: $scope.pages
} var dataObj = { title: $scope.title, pages: $scope.pages
} var res = $http.post('save/book.php', JSON.stringify(dataObj)