使用LIKE的Laravel查询不会返回任何结果

Question

Hi guys I'm currently stuck in this issue. I'm trying to search something on DB and doesn't return any results. Below are my codes.

Search string 1 = Boston Celtics

Search string 2 = Boston Celtics Can't

DB post_title = Boston Celtics Can't Let Bulls Loss Impact Difficult Stretch

QUERY

$data = $searchPost->where('post_title', 'like', '%'.$search.'%')
            ->orderBy('post_date', 'desc')
            ->offset($offset)
            ->limit($limit)
            ->get();

Search string 1 returns a result but search string 2 is not.

Answer 1

Simple, because your searching different string.

Search String 2 ".. Can't .." use Straight Quotes .

'

DB post_title ".. Can't .." use Curly Quotes .

'

For reference: Straight and curly quotes

Answer 2

My first guess would be that an apostrophe might be to blame - in SQL Server the concatenation operator is "+" so you also might want to make sure that is right. Maybe try removing an apostrophe character with:

replace($search, '''', '')

Four single quotes in Microsoft SQL is an escape sequence for a single quote.

Answer 3

Try the following code:

1) You code might be breaking string because of ' in can't .

$data = $searchPost->where('post_title', 'like', "%{$search}%")
            ->orderBy('post_date', 'desc')
            ->offset($offset)
            ->limit($limit)
            ->get();

Answer 4

Had the same problem before

try this

$data = $searchPost->where('post_title', 'like', '"%'.$search.'%"')
        ->orderBy('post_date', 'desc')
        ->offset($offset)
        ->limit($limit)
        ->get();

as you can see there is a " before the % at the start and another after % in the end.

Answer 5

If you see carefully you Can't in your search and your DB, the ' does not look the same

Can't vs Can't

When the ' is not the same, sure it can't be searched. Simple.

Answer 6

Had to use str_replace method to change apostrophe character

$search = str_replace('-', ' ', urldecode($request->input('search')));
$search = str_replace("'", "’", $search);