Why php service do not get variables? - php

Question

From UI I make call:
$http.post('services/loadCategory.php', {
'id' :'1',
'type' :'string'
}).then(function(response) {
debugger;
...
}, function(response) {
...
});
On PHP service I can't get variables from body POST request:
include ("bd.php");
header("Content-type: text/html; charset=windows-1251");
// ----- ----- ----- ----- -----
if (isset($_POST['type'])) {
$type = $_POST['type'];
}
if (isset($_POST['id'])) {
$id = $_POST['id'];
}
//
exit(json_encode(
array('type' => iconv('windows-1251', 'UTF-8', $_POST['type']),
'id' => iconv('windows-1251', 'UTF-8', $_POST['id'])
)));
Request from service: { id:'', type:'' } How fix that?

Answer 1

When posting JSON to PHP, the $_POST variable is empty. To get the raw JSON in your PHP, use the following:
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
$data = json_decode(file_get_contents('php://input'), true);
}
You can then access the data with $data['id'] and $data['type']
Check the incoming $data with print_r($data);

Answer 2

After doing a quick search about this issue, it appears that PHP has a hard time deserializing the POST body sent by AngularJS. AngularJS sends all information JSON encoded (application/json) as compared to most other JavaScript variants which send the content as application/x-www-form-urlencoded.
To fix this, you should either set the content-type of your request to application/x-www-form-urlencoded or you can try one of the solutions below which came from a similar question.
Based on this question, it would seem that the following code (provided by Felipe Miosso) seems to solve the problem:
// Your app's root module...
angular.module('MyModule', [], function($httpProvider) {
// Use x-www-form-urlencoded Content-Type
$httpProvider.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded;charset=utf-8';
/**
* The workhorse; converts an object to x-www-form-urlencoded serialization.
* #param {Object} obj
* #return {String}
*/
var param = function(obj) {
var query = '', name, value, fullSubName, subName, subValue, innerObj, i;
for(name in obj) {
value = obj[name];
if(value instanceof Array) {
for(i=0; i<value.length; ++i) {
subValue = value[i];
fullSubName = name + '[' + i + ']';
innerObj = {};
innerObj[fullSubName] = subValue;
query += param(innerObj) + '&';
}
}
else if(value instanceof Object) {
for(subName in value) {
subValue = value[subName];
fullSubName = name + '[' + subName + ']';
innerObj = {};
innerObj[fullSubName] = subValue;
query += param(innerObj) + '&';
}
}
else if(value !== undefined && value !== null)
query += encodeURIComponent(name) + '=' + encodeURIComponent(value) + '&';
}
return query.length ? query.substr(0, query.length - 1) : query;
};
// Override $http service's default transformRequest
$httpProvider.defaults.transformRequest = [function(data) {
return angular.isObject(data) && String(data) !== '[object File]' ? param(data) : data;
}];
});
Alternatively, you might be able to fix this problem by adding the following line of code to your PHP:
$params = json_decode(file_get_contents('php://input'),true);