＆LT; PHP$常用3 = 1 [user_id说明=！];//打印$ ARR的所有元素
的print_r（$ ARR）;呼应'＆LT; BR /＆GT;'$改编[user_id说明=！]。
 

运行上面的code。我认为user_id说明！=不是指标名称的问题，因为它工作正常。

Unable to send special symbols in array keys using $http POST method in AngularJS

Here is my AngularJS Code:

var httpHeader = {
    headers: { 'Content-Type': "application/x-www-form-urlencoded;" }
};
var postData = { 'user_id !=': 1 };
$http.post("http://localhost/api/view/country", $httpParamSerializer(postData), httpHeader)
.then(function (response) {
    var data = response.data;
});

in PHP when i do:

var_dump($_POST);

it shows:

array(1) {
  [0]=>
  string(1) "1"
}

it should be like:

array(1) {
  [user_id !=]=>
  string(1) "1"
}

When i send it without "!=" it works fine. What should i do to sort out this? Thanks

<?php

$arr["user_id !="] = 1;

// Print all the elements of $arr
print_r($arr);

echo '<br/>'.$arr["user_id !="] ;

Run the above code. I think "user_id !=" is not a problem of index name as it works fine.