<?php
$which=$_POST['which'];
$applicant=$_POST['applicant'];
session_start();
require_once 'functions.php';
if(!isset($_SESSION['name'])){
  session_destroy();
  header('Location:register.php');
}
try{
  $pdo=connect();
  if($which='y'){
  $sql="SELECT * from friend_table where friend1=? and friend2=?";
  $stmt=$pdo->prepare($sql);
  $stmt->execute(array($_SESSION['name'],$applicant));
  $result=$stmt->fetch(PDO::FETCH_ASSOC);
  if($result==NULL){
  $sql="INSERT into friend_table(friend1,friend2) values(?,?)";
  $stmt=$pdo->prepare($sql);
  $stmt->execute(array($_SESSION['name'],$applicant));
  $sql="INSERT into friend_table(friend1,friend2) values(?,?)";
  $stmt=$pdo->prepare($sql);
  $stmt->execute(array($applicant,$_SESSION['name']));
  $sql="DELETE from friend_apply_table where applicant=? and receiver=?";
  $stmt=$pdo->prepare($sql);
  $stmt->execute(array($applicant,$_SESSION['name']));
  $sql="DELETE from friend_apply_table where applicant=? and receiver=?";
  $stmt=$pdo->prepare($sql);
  $stmt->execute(array($_SESSION['name'],$applicant));
}
}else if($which='n'){
  $sql="DELETE from friend_apply_table where applicant=? and receiver=?";
  $stmt=$pdo->prepare($sql);
  $stmt->execute(array($applicant,$_SESSION['name']));
}
  header('Location:friend_receive.php');
}catch (PDOException $e){
    echo $e->getMessage();
    exit;
}

 ?>