If only one record from row duplicate - mysql

Question

I have problem with record which I must record in my table. I want update row if product with same name exist.
if ((int)$price > 0) {
$query = "SELECT name FROM phones WHERE LOWER(`name`) = LOWER(?)";
$duplicate = $this->db->query($query, array($name));
if ($duplicate->num_rows() > 0) {
$query = "update phones (name,price,shop,link,photo,priority) VALUES (?,?,?,?,?,?)";
$this->db->query($query, array($name,$price,"Pigu.lt", $link, $photos, rand(0,1000)));
} else {
$query = "insert into phones (name,price,shop,link,photo,priority) VALUES (?,?,?,?,?,?)";
$this->db->query($query, array($name,$price,"Pigu.lt", $link, $photos, rand(0,1000)));
}
}
table structure:
CREATE TABLE `phones` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(500)
COLLATE utf8_lithuanian_ci NOT NULL, `price` int(15)
NOT NULL, `shop` varchar(100)
COLLATE utf8_lithuanian_ci NOT NULL, `link` varchar(400)
COLLATE utf8_lithuanian_ci NOT NULL, `photo` varchar(500)
COLLATE utf8_lithuanian_ci NOT NULL, `priority` int(5)
NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=544 DEFAULT CHARSET=utf8 COLLATE=utf8_lithuanian_ci;
at know code dont work, please help for this

Answer 1

I do not know the reason why your PHP doesn't work, but since you tagged your post with mysql and sql and not php, I assume you'll accept a SQL-centric solution. Here are two; both assume that name is the primary key in table phones.
ANSI-compliant:
$query = "INSERT INTO phones (name, price, shop, link, photo, priority) \
VALUES (?,?,?,?,?,?) \
ON DUPLICATE KEY UPDATE price=?, shop=?, link=?, photo=?, priority=?";
$randnum = rand(0, 1000);
$this->db->query($query, array($name, $price, "Pigu.lt", $link, $photos, $randnum,
$price, "Pigu.lt", $link, $photos, $randnum));
MySQL-only:
$query = "REPLACE INTO phones (name, price, shop, link, photo, priority) \
VALUES (?,?,?,?,?,?)";
$this->db->query($query, array($name, $price, "Pigu.lt", $link, $photos, rand(0,1000)));