Ask for an empty record in a multidimensional array

Want to let empty records are deleted, and after deletion, some key is not, to the smooth key is also rearranged
For example, delete the $arr [' 0 '] $arr [' 3 '] $arr [' 5 '], then the finishing can be $arr [' 0 '] $arr [' 1 '] $arr [' 2 '] $arr [' 3 '] $arr [' 4 '] $arr [' 5 '] ...
Of course, the picture is a two-dimensional array, is to let the deletion, the subsequent key sequence also follow up


Using the online method is not good to make
function Array_no_empty ($arr) {
if (Is_array ($arr)) {
foreach ($arr as $k = = $v) {
if (empty ($v)) unset ($arr [$k]);
ElseIf (Is_array ($v)) {
$arr [$k] = Array_no_empty ($v);
}
}
}
return $arr;
}

It's useless, isn't it? Always say the middle array_no_empty undefined or something.

There's no other way, thank you.

Reply to discussion (solution)

Your Array_no_empty function is available
But something is wrong: An empty member array is returned

$a = Array (' a ' = =  0, ' b ' = = '),  array (' a ' = = 0, ' b ' = = '),  array (' A ' = 1, ' b ' = ' 2 ') ,);p Rint_r (Array_values (Array_no_empty ($a))), function Array_no_empty ($arr) {  if (Is_array ($arr)) {    foreach ($arr as $k = $v) {      if (empty ($v)) unset ($arr [$k]);      ElseIf (Is_array ($v)) {        $arr [$k] = Array_no_empty ($v);}}  }  return $arr;}

Array (    [0] = = Array (        )    [1] = = Array (        )    [2]        = = Array (            [A] = > 1            [b] = 2        ))

Modified a bit

$a = Array (' a ' = =  0, ' b ' = = '),  array (' a ' = = 0, ' b ' = = '),  array (' A ' = 1, ' b ' = ' 2 ') ,);p Rint_r (Array_no_empty ($a)), function Array_no_empty ($arr) {  if (Is_array ($arr)) {    foreach ($arr as $k = = $v) {      if (empty ($v)) unset ($arr [$k]);      ElseIf (Is_array ($v)) {        $t = Array_no_empty ($v);        if ($t) $arr [$k] = $t;        else unset ($arr [$k]);  }} return $arr;}

Array (    [2] = = Array        (            [A] = 1            [b] = 2        ))

rearrange subscript available Array_values functions

$a = Array (' a ' = =  0, ' b ' = = '),  array (' a ' = = 0, ' b ' = = '),  array (' A ' = 1, ' b ' = ' 2 ') ,);p Rint_r (Array_values (Array_no_empty ($a))), function Array_no_empty ($arr) {  if (Is_array ($arr)) {    foreach ($arr as $k = $v) {      if (empty ($v)) unset ($arr [$k]);      ElseIf (Is_array ($v)) {        $t = Array_no_empty ($v);        if ($t) $arr [$k] = $t;        else unset ($arr [$k]);  }} return $arr;}

Array (    [0] = = Array        (            [A] = 1            [b] = 2        ))

