Mysqli prepared insert with nested selects fails in foreach - php

Question

I'm trying to insert some date to MySQL table with prepared insert with nested 3 nested selects in it. The thing is that for all nested selects a single variable is used. Actual SQL:
INSERT INTO db_test.offers
(`id`,`catalog_service_id`,`offer_name`,
`offer_description`,`offer_url`,
`offer_interaction_format`,`offer_methods`)
VALUES(1,
(SELECT `catalog_service_id` FROM db_test.catalog_services
WHERE `catalog_service_code` = ?),
(SELECT `catalog_service_name` FROM db_test.catalog_services
WHERE `catalog_service_code` = ?),
(SELECT `catalog_service_name` FROM db_test.catalog_services
WHERE `catalog_service_code` = ?),
'https://url.com', 'json', 'CC');
PHP code:
class test extends mysqli{
function db_action($host = null){
$mysqli = new mysqli($host, MYSQL_USER, MYSQL_PASS, "db_test");
if(!$mysqli){
die ("couldn't connect to mysql host" . mysqli_connect_error());
}
$codes= ["AAAAA005760000000001","ААААА032680000000001","ААААА032680000000002"];
$query="SQL code from above";
$stmt = $mysqli->prepare($query);
$stmt ->bind_param("sss", $offer, $offer, $offer);
foreach ($codes as $k => $offer) {
if($stmt->execute() === false){
print 'Wrong SQL. Error: ' . $stmt->error . "\r\n";
}else{
$last_inserted_id = $mysqli->insert_id;
print "Insert row with id: " . $last_inserted_id . " for service_code: ". $offer . "\r\n";
}
}
$stmt->close();
}
}
First iteration of foreach works fine (1 row is inserted with correct data), but on 2nd and 3rd (just for an example, real number of elements in $codes array is unknown). The The executed statement on the sql-server is executed with question marks instead of actual value. When I go through the function in debugger - the value of $offer var changes on each iteration of for each.
SQL error that comes from the server is obvious: catalog_service_id cannot be null.
table info:
CREATE TABLE `offers` (
`offer_id` int(11) NOT NULL AUTO_INCREMENT,
`id` int(11) NOT NULL,
`catalog_service_id` int(11) NOT NULL,
`offer_name` varchar(255) DEFAULT NULL,
`offer_description` varchar(1000) DEFAULT NULL,
`offer_create_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`offer_start_time` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
`offer_stop_time` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
`offer_url` varchar(256) NOT NULL,
`offer_auth` enum('Basic','Digest') DEFAULT NULL,
`offer_auth_name` varchar(255) DEFAULT NULL,
`offer_auth_password` varchar(255) DEFAULT NULL,
`offer_auth_secret` varchar(255) DEFAULT NULL,
`offer_operator_id` int(11) NOT NULL,
`public_offer_url` varchar(1000) NOT NULL,
`offer_interaction_format` enum('urlencoded','json') NOT NULL DEFAULT 'urlencoded',
`offer_methods` enum('CC','MC') NOT NULL DEFAULT 'MC',
`offer_inn` varchar(20) DEFAULT NULL,
`offer_kpp` varchar(20) DEFAULT NULL,
`offer_min` int(11) DEFAULT NULL,
`offer_max` int(11) DEFAULT NULL,
PRIMARY KEY (`offer_id`)
) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8
I'm really stuck...