Insert date into SQL database from Angular form - php

Question

I have a form in my HTML file that allows the user to choose a date, this input binds to an Angular value. The value is then sent into a PHP file to be inserted into a database. Below is the code that shows how i currently have it set up.
HTML input form
<input class="input" ng-model="release" type="date" />
Angular controller
$http.post("php/addEpisode.php", {
'release': $scope.release})
PHP file
$postdata = file_get_contents("php://input");
$request = json_decode($postdata);
#$release = $request->release;
$query = "INSERT INTO episode ( release )
VALUES ( '{$release}' )";
$result = mysqli_query($connection, $query);
All the other values (which are not shown here) that are inserted into the table work fine. It is just this value that is an issue.
In the database the 'release' value is stored as a date with a format of 'yyyy-mm-dd'.
<---EDIT--->
I have found the reason it was not working. The name of the column in the table could not be set to 'release', it had to be something different as 'release' is a key word.

Answer 1

this work for me very well
in html
<div class="form-group col-md-6">
<label class="col-md-4 control-label">*Fecha Radicacion</label>
<div class="col-md-8 inputGroupContainer">
<div class="input-group">
<md-datepicker
ng-model="formulario.fechaRadicacion"
disabled
>
</md-datepicker>
</div>
</div>
</div>
in the controller
$scope.fechaRadicacion = new Date();
$scope.fechaActual=function(){
$scope.formulario.fechaRadicacion=$scope.fechaRadicacion.toISOString().slice(0, 10);
console.log("esta es la fecha en radicacion JS ",$scope.fechaRadicacion);
console.log("esta es a fecha en formulario.fechaRadicacion",$scope.formulario.fechaRadicacion);
}
in the PHP
//echo 'el dato es :<pre>'.$r->formulario->fechaRadicacion.;