SQL group inner join cannot get all results - php

Question

I really trying to get this SQL to work. Im no expert so really cant figure this out.
$sqlquery = " SELECT
s.searchword AS searchword,
s.id AS id,
COUNT( c.id ) AS searchresult,
s.region AS region
FROM search_words AS s
INNER JOIN company_data AS c ON
c.branch_text LIKE CONCAT( '%', s.searchword, '%' )
GROUP BY 1 ORDER BY s.date DESC";
This gives me:
Array
(
[0] => Array
(
[searchword] => WHOLESALE
[searchid] => 427
[searchresult] => 98
[region] => stockholm
)
[1] => Array
(
[searchword] => cars
[searchid] => 426
[searchresult] => 26
[region] =>
)
[2] => Array
(
[searchword] => Retail
[searchid] => 342
[searchresult] => 41
[region] => stockholm
)
[3] => Array
(
[searchword] => Springs
[searchid] => 339
[searchresult] => 4
[region] => stockholm
)
[4] => Array
(
[searchword] => Leasing
[searchid] => 343
[searchresult] => 2
[region] => stockholm
)
[5] => Array
(
[searchword] => Food
[searchid] => 340
[searchresult] => 37
[region] => stockholm
)
)
But, it does not give me any of the other results where there are no searchhits, would retur something like [searchresult] => 0. Meaning they do not group as I wish, because there are no such searchwords within the company_data table.
How can I fix this, please help :(
EDIT:
Here is the full code:
public function getUserSearches()
{
$sqlquery = " SELECT
s.searchword AS searchword,
s.id AS id,
s.userId AS userid,
COUNT( c.id ) AS searchresult,
s.region AS region
FROM search_words AS s
INNER JOIN company_data AS c ON
c.branch_text LIKE CONCAT( '%', s.searchword, '%' )
GROUP BY 1 ORDER BY s.date DESC";
// IS THERE ANYTHING WRONG HERE?? LIKE IT DOES NOT MATCH AGAINST THE USER?
$result = $this->dbh->query($sqlquery, array(":userId" => $this->user_id));
$arr = array();
foreach ($result as $item) {
array_push($arr, array('searchword' => $item['searchword'], 'searchid' => $item['id'],
'searchresult' => $item['searchresult'], 'userid' => $item['userid'],
'region' => $item['region']));
}
return json_encode($arr);
return print_r($arr);
}

Answer 1

Use LEFT JOIN so that any row that doesn't match the search criteria in the join condition will come with null, therefore count will be 0. Something like this:
SELECT
s.searchword AS searchword,
s.id AS id,
s.region AS region,
COUNT(COALESCE(c.id, 0)) AS searchresult
FROM search_words AS s
LEFT JOIN company_data AS c
ON c.branch_text LIKE CONCAT( '%', s.searchword, '%' )
GROUP BY s.searchword, s.id, s.region
ORDER BY s.date DESC;
See this for more details about the SQL Join types.

Answer 2

You need a LEFT JOIN, instead of an INNER JOIN. However, there are other simplifications you can make as well:
SELECT s.searchword, s.id, COUNT( c.id ) AS searchresult, s.region
FROM search_words s INNER JOIN
company_data c
ON c.branch_text LIKE CONCAT('%', s.searchword, '%')
GROUP BY 1
ORDER BY s.date DESC
For instance, you don't need column aliases when you are not changing the column name. You are only aggregating on searchword; I assume this is unique in search_words. Otherwise, s.id, s.region. and s.date would have indeterminate values.
The use of LIKE for the JOIN affects performance. If you only have a small amount of data, this is fine. Otherwise, you might want to think about other data structures.

Answer 3

I think what you want is perhaps this:
public function getUserSearches()
{
$sqlquery = " SELECT
s.searchword AS searchword,
s.id AS id,
s.userId AS userid,
COUNT( c.id ) AS searchresult,
s.region AS region
FROM search_words AS s
WHERE s.userId='"+$this->userid+"'
LEFT JOIN company_data AS c ON
c.branch_text LIKE CONCAT( '%', s.searchword, '%' )
GROUP BY 1 ORDER BY s.date DESC";
// IS THERE ANYTHING WRONG HERE?? LIKE IT DOES NOT MATCH AGAINST THE USER?
$result = $this->dbh->query($sqlquery);
$arr = array();
foreach ($result as $item) {
array_push($arr, array('searchword' => $item['searchword'], 'searchid' => $item['id'],
'searchresult' => $item['searchresult'], 'userid' => $item['userid'],
'region' => $item['region']));
}
return json_encode($arr);
return print_r($arr);
}