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Php - Code comparing value of database to the value send by android app


Php - Code comparing value of database to the value send by android app

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Php - Code comparing value of database to the value send by android app
Tag : php , By : JSebok
Date : January 12 2021, 08:33 AM

With these it helps I have solved the issue, I just changed the php code and it worked flawlessly. Here's the updated code :-
<?php
$connect = mysqli_connect("localhost", "db", "pass", "host");
$name = $_POST["name"];
$time = $_POST["time"];
$id = $_POST["id"];
function registerUser() {
global $connect, $name, $time, $id;
 $statement = mysqli_prepare($connect, "INSERT INTO leaderboard (name, time, id) VALUES (?, ?, ?)");
    mysqli_stmt_bind_param($statement, "sis", $name, $time, $id);
    mysqli_stmt_execute($statement);
    mysqli_stmt_close($statement);     
}
function nameAvailable() {
    global $connect, $id;
    $statement = mysqli_prepare($connect, "SELECT * FROM leaderboard WHERE id = ?"); 
    mysqli_stmt_bind_param($statement, "s", $id);
    mysqli_stmt_execute($statement);
    mysqli_stmt_store_result($statement);
    $count = mysqli_stmt_num_rows($statement);
    mysqli_stmt_close($statement); 
    if ($count < 1){
        return true; 
    }else {           
        return false; 
    }
}
$response = array();
$response["success"] = false;  
if (nameAvailable()){
    registerUser();
    $response["success"] = true;  
      } else {
        $sql = "SELECT time from leaderboard WHERE id = $id;";
$res = mysqli_fetch_assoc(mysqli_query($connect, $sql));
if($time < $res['time']){
        $sql = "UPDATE leaderboard SET time = $time where id=$id";
        $res = mysqli_query($connect, $sql);
        if(!$res){
            die("Query not executed " . mysqli_error($connect));
             $response["success"] = false;
            } else {
                    $response["success"] = true;
        }
    }
      }
    echo json_encode($response);
?>

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location aware Android, comparing distance in java or database?


Tag : java , By : sam
Date : March 29 2020, 07:55 AM
I wish did fix the issue. If you Calculate the distance in the database with query then you should go through all the rows in databse... and calculate the distance from each point in that row.. Or if you get all results into server, and then calculate the distance between 2 points then also you should go through all the rows of database and get the values in rows.. and then calculate the distance.. but in second case you should get all the values in database(i mean location values)...but in first case only a single value... this is the extra work you should in second case.. so.. first way is better... i think..

Need Help in Faster Algorithm and Code-checking - comparing values to database data


Tag : c , By : Olexiy P.
Date : March 29 2020, 07:55 AM
this one helps. I need help in developing a faster algorithm to be used in my CGI file (using C). I have four sqlite3 database tables that contains two parameters attack_type and defend_type. These tables are mod_no, mod_ne, mod_av, and mod_se. When the function double modifier(int attack_type, int defend), an sqlite3 statement selects from the database if an entry of attack_type and defend_type exists together in one of the tables. Depending on which table the sqlite3 statement yields == 1, the function will return a specific value of data type double. , Here is one possible optimisation:
select exists(select atk_typ,pok_typ from mod_no where atk_typ = %d and pok_typ = %d);",mod_tables[i],atk_typ, pok_typ)
union
select exists(select atk_typ,pok_typ from mod_ne where atk_typ = %d and pok_typ = %d);",mod_tables[i],atk_typ, pok_typ)
union
select exists(select atk_typ,pok_typ from mod_av where atk_typ = %d and pok_typ = %d);",mod_tables[i],atk_typ, pok_typ)
union
select exists(select atk_typ,pok_typ from mod_se where atk_typ = %d and pok_typ = %d);",mod_tables[i],atk_typ, pok_typ)

Comparing data from SQLite database - Android (java)


Tag : java , By : adrianmooreuk
Date : March 29 2020, 07:55 AM
With these it helps I made a SQLite highscores that has 3 columns; rank(int), score(long) and percentage(int). I am trying to pull all the data from the columns and compare them to the score the user just got to see if their new score made the highscores list that holds the top 10.
 scores = db.execSQL("SELECT " + SCORE + " FROM " + TABLE + ";");

Comparing the data from a database with the item selected on spinner- Android


Tag : java , By : JoeKaras
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Use final String text = spinner.getSelectedItem().toString(); to get selected item from Spinner
And

android sqlite database error in using where clause in comparing things


Tag : android , By : Pancilobak
Date : March 29 2020, 07:55 AM
Does that help i am getting this error please help- , You should write the code like the below code:
Cursor cursor = db.rawQuery("SELECT SUM( " +amountinserted + " ) " + " FROM " +tablename + " **where** " +datename + "='" + rmethod() + "'", null);
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