PHP - Looping through an object keys, one cycle per key

Question

I have this object containing one row and many keys/variables with numbered names. I need to pass each of them one at a time to another function. How do I loop through the keys instead of the rows?

The code would look like this:

foreach ($object['id'] as $row):
$i++;
$data['myInfo'][$i] = $this->get_data->getInfo('data1', 'id', $row->{'info'.$i.'_id'});`

but this obviously won't work since it's looping through the rows/instances of an object, and I have only one row in my $object['id'] object (with info1_id, info2_id, info3_id, info4_id... etc keys), so the loop stops after just one cycle. And I really don't feel like typing all of that extra code by hand, there's gotta be solution for this. :)

that's a single cycle and doesn't solve anything. I would still need to type everything (a lot) by hand. Please do read again. — SmOg3R
– SmOg3R, Commented May 23, 2015 at 23:49
There are no "rows" in arrays. You have dimensions, keys and values. — Daniel W.
– Daniel W., Commented May 24, 2015 at 0:44

Alfwed · Accepted Answer · 2015-05-23 23:53:35Z

1

You can just iterate through your object like an array :

foreach ($object['id'] as $row) {

    foreach ($row as $k => $v) {
        $id = substr($k, 4, strpos($k, '_')-4);
        $data['myInfo'][$id] = $this->get_data->getInfo('data1', 'id', $v);`
    }
}

answered May 23, 2015 at 23:53

Alfwed

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SmOg3R · Accepted Answer · 2015-05-24 01:40:14Z

0

Thanks for the directions Alfwed, I didn't know you could use foreach loop for anything other than instances of an object or arrays (only started learning php a week or so ago), but now it looks pretty straight forward. that's how I did it:

foreach ($object['id'] as $row):

        foreach ($row as $k=>$v): 
             $i++;
            if ($k == print_r ('info'.$i.'_id',true)){


            $data['myinfo'][$i] = $this->get_db->getRow('products', 'id','info'.$i.'_id'); 

    <...>

in my case, I knew how many and where were those values, so I didn't have to worry about index values too much.

answered May 24, 2015 at 1:40

SmOg3R

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1 Comment

HorusKol Over a year ago

$row here is an object

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