The app send a String/Jsonobject with POST method to a PHP file. And I want to use that value to set the Limit in the query
$sql = "select * from posts ORDER BY post_id DESC LIMIT $tag";
I can receive it but i can't use it into my query. I got errors like "java.lang.string cannot be converted to jsonarray" I tried to convert it into Integer :
$int = intval($tag);
but the query still doesn't see it as an Integer..
There is another way to get an Int from Activity.java to php so that i can put it in the query after ORDER BY post_id DESC LIMIT ?
Java
RequestQueue queue = Volley.newRequestQueue(this);
Map<String, String> params = new HashMap<>();
params.put("tag", "2");
JSONObject o = new JSONObject(params);
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(
Request.Method.POST,
Php
<?php
//open connection to mysql db
$connection = mysqli_connect("xxxxx","xxxx","xxxx","xxxx")
or die("Error " . mysqli_error($connection));
$data = json_decode(file_get_contents('php://input'), true);
if (empty($data['tag']) == false) {
$tag = $data['tag'];
}
//fetch table rows from mysql db
$sql = "select * from posts ORDER BY post_id DESC LIMIT $tag";
$result = mysqli_query($connection, $sql)
or die("Error in Selecting " . mysqli_error($connection));