PHP Database records Insertion Notification

incMultiDBConnection.php:
<?php 
error_reporting(E_ALL);
ini_set('display_errors', 1);
 
$username = 'root';
$password = 'xxxxxx';
$dsn      = 'mysql:host=localhost;dbname=inventas;charset=utf8mb4';

$options  = [
    PDO::ATTR_EMULATE_PREPARES   => false,
    PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_OBJ,
];

try {
    $db = new PDO($dsn, $username, $password, $options);
    
if ($db->query($insert)) {
     echo "<script type= 'text/javascript'>alert('New Record Inserted Successfully');</script>";
} 
else{
     echo "<script type= 'text/javascript'>alert('Data not successfully Inserted.');</script>";
}
    
} catch(PDOException $e) {
    die( $e->getMessage() );
}

?>

<?php require_once('incMultiDBConnection.php'); ?>
<?php 


$insert = $db->prepare("INSERT INTO inventasequipment (equip_companyname, equip_name, equip_type, equip_sn, equip_productno, equip_website, equip_support, equip_use, equip_purchasedate, equip_warrenty, equip_performance, equip_comments, equip_cost, equip_datevisited, equip_timefrom, equip_timeto) VALUES (:company, :name, :type, :sn, :pn, :web, :support, :use, :purchase, :warrenty, :perf, :comments, :cost, :visitdate, :timefrom, :timeto)");

foreach ($_POST['equip'] as $equipment):
    $insert->execute([
        'company' => $equipment['companyname'],
        'name' => $equipment['equipname'],
        'type' => $equipment['equiptype'],
        'sn' => $equipment['equipsn'],
        'pn' => $equipment['equippn'],
        'web' => $equipment['equipweb'],
        'support' => $equipment['equipsupport'],
        'use' => $equipment['equipuse'],
        'purchase' => $equipment['equippurchase'],
        'warrenty' => $equipment['equipwarrenty'],
        'perf' => $equipment['equipperf'],
        'comments' => $equipment['equipcomments'],
        'cost' => $equipment['equipcost'],
        'visitdate' => $equipment['equipvisit'],
        'timefrom' => $equipment['equiptimefrom'],
        'timeto' => $equipment['equiptimeto'],
    ]);
endforeach;

 

//vardump:
// Loop through the array
//foreach( $_POST['person'] as $person ):
// var_dump($person);
  //echo $person['firstname'];
 // echo $person['lastname'];
//endforeach;

?>

The first code block is the include for the second code block. I am trying to te following working:
if ($db->query($insert)) {
     echo "<script type= 'text/javascript'>alert('New Record Inserted Successfully');</script>";
}
else{
     echo "<script type= 'text/javascript'>alert('Data not successfully Inserted.');</script>";
}

The page works and successfully inserts data into the database but the echo message for successful insertion does not work. I get the "Data not successfully Inserted" message
Any ideas, please