通过内插数组来运行Where IN，但是输出是字符串，并且无法按预期在MySQL中运行

Question

Trying to a run a simple select query with WHERE IN on a couple ID's.

$idArray = array(492, 493, 494, 495);
$csvList = implode(",", $idArray);

DB::select("SELECT id, name FROM table WHERE id IN (?)", array($csvList));

That's what I'm running, no errors. The problem is, my query outputs $csvList as a string with quotes. '492, 493, 494, 495' which MySQL does not interpret properly. I only get 1 result back for 492 instead of all 4 results. If I remove the quotes from the query, it works fine.

This is the full query that runs with the page:

SELECT id, name FROM table WHERE id IN ('491,493,494,495');

I need to get rid of the quotes, anyone know how I can do that? Or what I'm doing wrong?

Answer 1

You have two options.

Either use Laravel's query builder:

$ids = [492, 493, 494, 495];

$results = DB::table('table')->select('id', 'name')->whereIn('id', $ids)->get();

Or create an array of question marks, and implode them:

$ids = [492, 493, 494, 495];

$placeholders = implode(', ', array_fill(0, count($ids), '?'));

$results = DB::select("SELECT id, name FROM table WHERE id IN ({$placeholders})", $ids)->get();