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select uid, group_concat(id) as id from tbl_name group by uid
并读取成$r[3] = explode(',', '1,2,3,4,5');
$r[4] = explode(',', '1,2,5');
$r[5] = explode(',', '1,3,5');
$t = call_user_func_array('array_intersect', $r);
print_r($t);
Array
(
[0] => 1
[4] => 5
)