PHP generate dynamic PDO insert

Question

The following code should insert each key-value pair in an array into a mathing column-value in a table. The script returns no errors but the the inserted row contains only

Answer 1

$conn = new PDO('mysql:host=' . $HOST . ';dbname=' . $DATABASE, $USERNAME, $PASSWORD);
$conn->exec("set names utf8");
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);

$ins_query = 'INSERT INTO `' . $table_name . '` ';

$columns = array();
$columns_bindings = array();
foreach ($dataArray as $column_name => $data) {
    $columns[] = $column_name;
    $columns_bindings[] = ':' . $column_name;
}

$ins_query = $ins_query . '(' . implode(', ', $columns) . ') VALUES (' . implode(', ', $columns_bindings) . ')';

$stmt = $conn->prepare($ins_query);

foreach ($dataArray as $column_name => $data) {
    $stmt->bindValue(":" . $column_name, $data);
}
if (!$stmt->execute()) {
    print_r($stmt->errorInfo());

} else {
    echo "Insertd";
}