Как расшифровать пароль из базы данных в php?

<?php
require 'dbfunction.php';

$con = getDbConnect();


   if (mysqli_connect_errno($con)) {
      "Failed to connect to MySQL: " . mysqli_connect_error();
   } else {
      $result = mysqli_query($con, "SELECT * FROM admininfo where name = xyz");

   while ($admininfo = mysqli_fetch_array($result)) {
                           
                            ?>

  <div class="container">
    <div class="row">

      <center>
        <h2>Edit Info Administrator</h2>
      </center>
      <form>

        <div class="form-group">
          <label class="col-sm-2 control-label">Name</label>
          <div class="col-md-10">
            <input type="text" class="form-control" value="<?php echo $admininfo['name']; ?>" name="name">
          </div>
        </div>

        <div class="form-group">
          <label class="col-sm-2 control-label">Password</label>
          <div class="col-md-10">
            <input type="password" class="form-control" placeholder="<?php echo $admininfo['password']; ?>" name="password">
          </div>
        </div>

        <div class="form-group">
          <label class="col-sm-2 control-label">Comfirm Password</label>
          <div class="col-md-10">
            <input type="password" class="form-control" placeholder="Confirm Password" name="confirmpassword">
          </div>
        </div>

        <div class="form-group">
          <div class="col-sm-10 col-sm-offset-2">
            <input type="submit" value="edit account" class="btn btn-primary">
          </div>
        </div>

      </form>
    </div>
  </div>



<?php } mysqli_close($con); } ?>