Why does it always return TRUE?

Question

PHP

TestApp.controller('MainCtrl', ['$scope','$http', function ($scope,$http) {

  $http.post('test.php')
        .success(function(data){
          console.log(data)
        })
        .error(function(data,status){
          console.log('error');
        })

}])

<?php

echo false;

Answer 1

I don't know Angular.
But if you expect .error to be executed, the server should return an http error code.
just false is also a value and does not mean that it is an error

Answer 2

Without an error code, the client thinks everything is OK)

Answer 3

TestApp.controller('MainCtrl', ['$scope','$http', function ($scope,$http) {

  $http.post('test.php')
        .success(function(data){
          console.log(data.message)
        })
        .error(function(data,status){
          console.log('error');
        })

}])

<?php 
echo '{"message":false}';
?>

or

TestApp.controller('MainCtrl', ['$scope','$http', function ($scope,$http) {

  $http.post('test.php')
        .success(function(data){
          console.log(data)
        })
        .error(function(data,status){
          console.log('error');
        })

}])

<?php 
echo 'false';
?>

Answer 4

first use echo json_encode(['message' => true]);
secondly, specify the type of content to be transferred in the header;
thirdly, look at the results of the request to begin with

Answer 5

I advise you to study the theory first, at least by the phrase in Google:

implementing restful php