View file mail/send.php

<?php
include '../system/inc/connect.php';
include '../system/inc/core.php';
$title = $send_mail['title'];
include '../system/inc/header.php';

if(!$user){
	header('Location: /index.php');
}
$id_kont = intval($_GET['id_kont']);

##Проверяем на существование юзера##
$q = mysql_query("SELECT id FROM user WHERE id = '$id_kont'");
if(!mysql_num_rows($q)){
	err($send_mail['no_user']);
	include '../system/inc/footer.php';
	exit;
}
######
if(!$id_kont){
	err($send_mail['err_kont']);
	echo '<div class="menu"><a href="/mail/">'.$send_mail['back'].'</a></div>';
	include '../system/inc/footer.php';
	exit;
}
#####Себе писать низя######
if($id_kont == $user['id']){
	err($send_mail['isend']);
	echo '<div class="menu"><a href="/mail/">'.$send_mail['back'].'</a></div>';
	include '../system/inc/footer.php';
	exit;
}
#######
echo '<div class="menu">&nbsp; &#160;<span class="left">';
user($id_kont);
echo '</span></div>';

###Система отправки почты###
if(isset($_POST['send'])){
	$mess = txt($_POST['messages']);

	if (mb_strlen($mess, "utf-8") < 2) {
		$err = $send_mail['strlen'];
	}
	/*---------*/
	if(!isset($err)){
		$sql = mysql_query("SELECT * FROM kont WHERE (id_user = '$user[id]' AND kont_user = '$id_kont') OR (id_user = '$id_kont' AND kont_user = '$user[id]')");
		$num = mysql_fetch_assoc($sql);

		if(!mysql_num_rows($sql)){
			### Если диалога не существует,
			### Создаем новый
			mysql_query("INSERT INTO `kont` SET `time` = '".time()."', `id_user` = '$user[id]', `kont_user` = '$id_kont'");
			$id = mysql_insert_id();
			mysql_query("INSERT INTO `messages` SET `time` = '".time()."', `id_user` = '$user[id]', `mess_user` = '$id_kont', `msg` = '$mess', `cont` = '$id'");
			header("Location: /mail/write$id");
		} else {
			#### Если диалог существует,
			#### поднимаем его в списке диалогов
			mysql_query("UPDATE `kont` SET `time` = '".time()."' WHERE `id` = '$num[id]'");
			mysql_query("INSERT INTO `messages` SET `time` = '".time()."', `id_user` = '$user[id]', `mess_user` = '$id_kont', `msg` = '$mess', `cont` = '$num[id]'");
			header("Location: /mail/write$num[id]");
		}
		####
	} else {
		err($err);
	}
}
###Форма отправки####
?>
<div class="orange"><form method="post">
<textarea name="messages"></textarea><br />
<input type="submit" name="send" value="<?=$send_mail['send']?>" />
</form></div>
<?php
err($send_mail['warning']);
include '../system/inc/footer.php';