mySql - search query based on keywords - php

Question

I wasn't able to find anything that really helped me out with this.
I have a database with the following structure:
and a simple query to search and display some results from the DB:
if ($_REQUEST['search']) {
$q = $_REQUEST['search'];
$q_comma = explode(", ", $q);
$where_in_set = '';
$count = count($q_comma);
foreach ($q_comma as $q) {
$counter++;
if ($counter == $count) {
$where_in_set .= "FIND_IN_SET('$q','keywords')";
} else {
$where_in_set .= "FIND_IN_SET('$q','keywords') AND ";
}
}
$sql_res = "select link, description, keyword from myDB where $where_in_set or description like '%$q%'";
This code works, but not really as I wanted.
In the keyword column, I have different comma separated keywords, and i'd like to be able to search for them even if the order is different.
Here's an example: Let's say I have into my keyword column
Google, Facebook, twitter
With my current code if I type Google, I can see the result, but if i type twitter, I don't see it.
Is there anything I can do to make it work without taking into account the order of the keywords, but having a pretty fast search as well?
Any help will be really appreciated.
PS. I'd like to keep only one DB if possible, cause I read about creating a new table with only ID and keywords, and on my search join the tables on the ID's, but I would prefer a better solution if possible.
Thanks
EDIT
Some updates:
as pointed out by #Frayne Konok, i have the query in lowcase and all the value in the db in lowcase as well, so case cannot be the problem
As suggested by #mkaatman, i wrapped keyword column around backticks (`)
I changed my query so that now it looks like the one suggested by #user2272989 in the answer
So my query now looks like this:
select link, description, keyword from myDB
where (FIND_IN_SET('google',`keyword`) or
FIND_IN_SET('facebook', `keyword`) or
FIND_IN_SET('twitter', `keyword`))
OR description like 'google, facebook, twitter'
And it is returning values even if the order is different, but it is not showing only the one i want.
For example, if i write twitter, google, facebook, i have as a return something like 28 rows, where only 2 have all of the three words as a keyword, while the other my have only one or two
EDIT 2 - Updates
I just want to "reopen" this question since I didn't manage to solve this. If I change all the keywords into an object, will then be better to use them as keywords? or what is the absolute best and more reliable way to search a database for keywords? Having different DBs and use an INNER JOIN?
At this point I'm willing to change the structure and the code if it helps.
Thanks

Answer 1

This may help you
$sql_res = "select link, description, keyword from myDB
where (FIND_IN_SET('yahoo',keyword) or
FIND_IN_SET('twitter',keyword)) or
description like '%$q%'";
You are using AND condition in FIND_IN_SET

Answer 2

I ended up using this structure and query here:
$q = $_REQUEST['search'];
$q_comma = array_filter(explode(' ', str_replace(',', ' ', $q)));
$count = count($q_comma);
$dbQuery = "select id, link, description, tags from db where ";
$searchTerms = '';
foreach ($q_comma as $q) {
$counter++;
if ($counter == 1) {
$searchTerms .= "tags LIKE '%$q%'";
} else {
$searchTerms .= "and tags LIKE '%$q%'";
}
}
$sql_res = $dbQuery . $searchTerms;
$result = mysqli_query($db, $sql_res) or die(mysqli_error($db));
$return_arr = array();
$data = array();
if (mysqli_num_rows($result) == 0) {
echo "Nothing";
} else {
while ($row = mysqli_fetch_object($result)) {
$data[] = $row;
}
mysqli_free_result($result);
echo json_encode($data);
}