Php two-dimensional array, how to deal

Php two-dimensional Array & nbsp; (& nbsp; [0] & nbsp; & gt; & nbsp; Array & nbsp; (& nbsp; [AdminName] & nbsp; & gt; & nbsp; sysadm & nbsp; [MenuNo] & nbsp; & gt; & nbsp;) & nbsp; [1] & nbsp; & gt; & nbsp; Array & nbsp; (& nbsp; [Adm php two-dimensional array
Array ([0] => Array ([AdminName] => sysadm [MenuNo] =>) [1] => Array ([AdminName] => 00000 [MenuNo] =>, 32) [2] => Array ([AdminName] => 00000 [MenuNo] =>, 27) [3] => Array ([AdminName] => 00001 [MenuNo] =>, 32 ))
Array as above: how to merge the values of MenuNo into a unit with the same AdminName
Array ([0] => Array ([AdminName] => sysadm [MenuNo] =>) [1] => Array ([AdminName] => 00000 [MenuNo] =>) [2] => Array ([AdminName] => 00001 [MenuNo] =>, 32 ))
------ Solution --------------------

$ar = array (
  0 => array ( 'AdminName' => 'sysadm', 'MenuNo' => ''),
  1 => array ( 'AdminName' => '00000',  'MenuNo' => '30,27,32' ),
  2 => array ( 'AdminName' => '00000',  'MenuNo' => '25,26,27' ),
  3 => Array ( 'AdminName' => '00001',  'MenuNo' => '30,27,32' ),
);

$res = array();
foreach($ar as $row) {
  if(! isset($res[$row['AdminName']])) $res[$row['AdminName']] = $row;
  else $res[$row['AdminName']]['MenuNo'] .= ',' . $row['MenuNo'];
}
print_r(array_values($res));

Array
(
    [0] => Array
        (
            [AdminName] => sysadm
            [MenuNo] => 
        )

    [1] => Array
        (
            [AdminName] => 00000
            [MenuNo] => 30,27,32,25,26,27
        )

    [2] => Array
        (
            [AdminName] => 00001
            [MenuNo] => 30,27,32
        )

)

This is called "clustering" in the calculation method"