Two-dimensional array, algorithm

Two-dimensional array to find an algorithm
This array is like this, how to put such an array, the same employee_id Yeji add up
Array
(
[0] = = Array
(
[employee_id] = 26
[Yeji] = 60
)

[1] = = Array
(
[EMPLOYEE_ID] = 25
[Yeji] = 105
)

[2] = = Array
(
[employee_id] = 26
[Yeji] = 100
)

[3] = = Array
(
[EMPLOYEE_ID] = 25
[Yeji] = 0
)

)

The merged array is like this
Array
(
[0] = = Array
(
[employee_id] = 26
[Yeji] = 160
)

[1] = = Array
(
[EMPLOYEE_ID] = 25
[Yeji] = 105
)
)
------to solve the idea----------------------

$ar = Array (
  0 = Array (
    ' employee_id ' = ' 26 ',
    ' Yeji ' = ' 60 ',
  ),
  1 = Array (
    ' employee_id ' = ' 25 ',
    ' Yeji ' = ' 105 ',
  ),
  2 = Array (
    ' employee_id ' = ' 26 ',
    ' Yeji ' = ' 100 ',
  ),
  3 = Array (
    ' employee_id ' = ' 25 ',
    ' Yeji ' = ' 0 ',
  ),
);

$res = Array ();
foreach ($ar as $item) {
  $res [$item [' employee_id ']][' employee_id '] = $item [' employee_id '];
  @ $res [$item [' employee_id ']][' yeji '] + = $item [' Yeji '];
}
Print_r (Array_values ($res));

Array
(
    [0] = = Array
        (
            [employee_id] = 26
            [Yeji] = 160
        )

    [1] = = Array
        (
            [EMPLOYEE_ID] = 25
            [Yeji] = 105
        )

)

------to solve the idea----------------------

$arr = Array (
  0 = Array (
    ' employee_id ' = ' 26 ',
    ' Yeji ' = ' 60 ',
  ),
  1 = Array (
    ' employee_id ' = ' 25 ',
    ' Yeji ' = ' 105 ',
  ),
  2 = Array (
    ' employee_id ' = ' 26 ',
    ' Yeji ' = ' 100 ',
  ),
  3 = Array (
    ' employee_id ' = ' 25 ',
    ' Yeji ' = ' 0 ',
  ),
);
$item =array ();
foreach ($arr as $k = = $v) {
    if (!isset ($item [$v [' employee_id ']]) {
        $item [$v [' employee_id ']][' employee_id ']= $v [' employee_id '];
        $item [$v [' employee_id ']][' Yeji ']= $v [' Yeji '];
    }else{
        $item [$v [' employee_id ']][' Yeji ']+= $v [' Yeji '];
    }
}
Print_r ($item);

Array
(
    [+] = Array
        (
            [employee_id] = 26
            [Yeji] = 160
        )

    [+] = Array
        (
            [EMPLOYEE_ID] = 25
            [Yeji] = 105
        )

)

------to solve the idea----------------------

function Calcarrsameid ($arr =array ())
{
foreach ($arr as $key = = $value) {
Print_r ($value);d ie;
if (!isset ($tmp [$value [' employee_id ']])
{
$tmp [$value [' employee_id ']][' employee_id '] = $value [' employee_id '];
$tmp [$value [' employee_id ']][' yeji '] = $value [' Yeji '];
}else{
$tmp [$value [' employee_id ']][' yeji '] + = $value [' Yeji '];
}

}
$list = Array_values ($tmp);
Print_r ($list); exit;
}

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