Could Not Add The Entry...

Can someone please help me solve the following error? I am not sure of the version my hosting company is using and where to get the manual.
Could not add the entry because: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '-id, title, entry, date_entered) VALUES ('testing', 'testing', . The query was INSERT INTO blog_entries (blog-id, title, entry, date_entered) VALUES ('testing', 'testing', 'testing'.


PHP Code:





if ($dbh = mysql_connect ('localhost', 'blu6592_money', 'rich')) {
    print '<p>Successfully connected to MySQL.</p>';

if (mysql_select_db ('blu6592_myblog')) {
    print '<p>The database has been selected.</p>';
} else {
    die ('<p>Could not select the database because: <b>' . mysql_error() . '</b></p>');
}

$query = "INSERT INTO blog_entries
(blog-id, title, entry, date_entered)
VALUES (0, '{$_POST['title']}',
'{$_POST['title']}',
'{$_POST['entry']}', NOW())";

if (mysql_query ($query)) {
    print '<p>The blog entry has been added.</p>';
} else {
    print "<p>Could not add the entry because: <b>" . mysql_error() . "</b>. The query was $query.</p>";
}

} else {
    die ('<p>Could not connect to MySQL because: <b>' . mysql_error() . '</b></p>');
}

mysql_close(); 







Thanks in advance.