Removing a key=>value pair from a 3D associative array - PHP - php

Question

The 3D assoc. array looks like below.
Array
(
[COL] => Array
(
[0] => Array
(
[emp_num] => 1000001
[user_name] => Test User
[amount] => 775.00
[name] => COL
)
[1] => Array
(
[emp_num] => 26
[user_name] => John Doe
[amount] => 555.00
[name] => COL
)
)
[RA. 20%] => Array
(
[0] => Array
(
[emp_num] => 1000001
[user_name] => Test User
[amount] => 110.00
[name] => RA. 20%
)
)
[BS] => Array
(
[0] => Array
(
[emp_num] => 1000001
[user_name] => Test User
[amount] => 444.00
[name] => BS
)
)
)
I want to remove the the last key=>value pair of each inner most array. (want to remove the key value pair that has [name] for the key)
The result should look like the array below.
Array
(
[COL] => Array
(
[0] => Array
(
[emp_num] => 1000001
[user_name] => Test User
[amount] => 775.00
)
[1] => Array
(
[emp_num] => 26
[user_name] => John Doe
[amount] => 555.00
)
)
[RA. 20%] => Array
(
[0] => Array
(
[emp_num] => 1000001
[user_name] => Test User
[amount] => 110.00
)
)
[BS] => Array
(
[0] => Array
(
[emp_num] => 1000001
[user_name] => Test User
[amount] => 444.00
)
)
)
I wrote a function to do this.
<!-- language: php -->
function remove_name_from_psa($psa_array){
foreach( $psa_array as $key=>$value ) {
foreach( $value as $key2=>$value2 ){
foreach( $value2 as $key3=>$value3 ){
if( $key3 != 'name') {
$psa_name_removed[$key][$value[$key2][$value2[$key3]]] = $value3;
}
}
}
}
return $psa_name_removed;
}
The returned array is this, which is obviously not what I need.
Array ( [COST OF LIVING] => Array
( [] => 555.00 )
[RENT ALLOW. 20%] => Array
( [] => 110.00 )
[BASIC SALARY] => Array
( [] => 444.00 )
)
And there are lots of undefined offset and undefined index notices.
$psa_name_removed[$key][$value[$key2][$value2[$key3]]] = $value3; //is this the line I am doing the mistake? Or is the whole method a mistake? :-P
How can I get this to work? Can anyone help?
Thank You!

Answer 1

function remove_name_from_psa($psa_array){
foreach( $psa_array as $key => $value ) {
foreach( $value as $key2 => $value2 ){
unset( $psa_array[$key][$key2]['name'] );
}
}
return $psa_array;
}

Answer 2

Wee, functional solution!
$array = array_map(function ($i) {
return array_map(function ($j) {
return array_diff_key($j, array_flip(array('name')));
}, $i);
}, $array);
More traditional solution:
foreach ($array as &$i) {
foreach ($i as &$j) {
unset($j['name']);
}
}
Note the & in as &$i. Use this reference to modify the item.

Answer 3

foreach($array as &$foo){
foreach($foo as &$bar){
unset($bar['name']);
}
}

Answer 4

To truly unset the last element in a 3D array your would do this:
$data = array(
array(
array(1, 2, 3),
),
);
foreach ($data as $i1 => $j1) {
foreach ($j1 as $i2 => $j2) {
end($j2);
unset($data[$i1][$i2][key($j2)]);
}
}
var_dump($data);
See it in action here:
http://codepad.viper-7.com/CbgnVf

Answer 5

function remove_name_from_psa( $psa_array ){
foreach( $psa_array as $key => $value ) {
foreach( $value as $key2 => $value2 ) {
array_pop( $psa_array[$key][$key2] );
}
}
return $psa_array;
}