Create a comma-separated string from a single column of an array of objects

Question

I\'m using a foreach loop to echo out some values from my database, I need to strip the last comma from the last loop if that makes sense.

My loop is just simple, as

Answer 1

In modern PHP, array_column() wil allow you to isolate a column of data within an array of objects.

Code: (Demo)

$results = [
    (object)['name' => 'A'],
    (object)['name' => 'B'],
    (object)['name' => 'C']
];

echo implode(',', array_column($results, 'name'));

Output:

A,B,C

That said, since you are iterating a result set, then you may be better served by calling a CONCAT() function in your sql, so that the values are already joined in the single value result set.