<?php
$host = 'localhost';
    $db   = '';
    $user = '';
    $pass = '';
    $charset = 'utf8';
    $dsn = "mysql:host=$host;dbname=$db;charset=$charset";
    $pdo = new PDO($dsn, $user, $pass);
    $stmt = $pdo->query("SELECT * FROM task WHERE id_t = ".$_GET['id']."");
while ($row = $stmt->fetch()) {
if ($row['process_t'] == $_POST['process_t']) {
    $pdo = new PDO($dsn, $user, $pass);
    $s1="UPDATE task SET name_t='".$_POST['name_t']."', desc_t='".$_POST['desc_t']."', process_t='".$_POST['process_t']."', status_t='".$_POST['status_t']."', client_t='".$_POST['user_id']."'  WHERE id_t='".$_POST['id']."'";
}
else {
    $stmt2 = $pdo->query("SELECT * FROM stages limit 1");
while ($row2 = $stmt2->fetch()) {
    $pdo = new PDO($dsn, $user, $pass);
    $s1="UPDATE task SET name_t='".$_POST['name_t']."', desc_t='".$_POST['desc_t']."', process_t='".$_POST['process_t']."', status_t='".$row2['status_t']."', client_t='".$_POST['user_id']."'  WHERE id_t='".$_POST['id']."'";
}
}
}
$pdo->exec($s1);
header("Location: /taskedit/?done&id=".$_POST['id']."");
?>