Why doesn't the array contents of Ecshop getAll print?

$sql = "Select user_id, Content from". $GLOBALS [' ECS ']->table (' Reg_extend_info '). WHERE content = ' $filter [Tuijianren] ';
$row = $GLOBALS [' db ']->getall ($sql);
$ex _where. = "and user_id in (' $row [user_id] ')";


Print_r ("

");   
Print_r ($row [' user_id ']);   
Print_r ("

");
Die ();

I was based on ecshop development, why the GetAll query table field is not read? and Print_r ($row), there is content, or change getall to GetRow words print_r ($row [' user_id ']) Normal, Print_r ($row) is normal.

I want to get all the values of $row[' user_id '], that is, to query the name of the member of the referrer, how should I change it?
Give 100 points, thank you!

Reply to discussion (solution)

$row is a two-dimensional array, you should handle it as a one-dimensional array, of course.

Print_r ($row); What's the result?

$row is a two-dimensional array that needs to be output

foreach ($row as $k = + $v) {  echo $v [' user_id ']. '
';}

Print_r ($row); What's the result?

Print Out is
Array
(
[0] = = Array
(
[USER_ID] = 55
[Content] = A923168
)

[1] = = Array
(
[USER_ID] = 56
[Content] = A923168
)

[2] = = Array
(
[USER_ID] = 60
[Content] = A923168
)

[3] = = Array
(
[USER_ID] = 63
[Content] = A923168
)

)

Print_r ($row [0][' user_id ']);

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Problem solved, thank you for the replies, have given points, thank you

