using foreach loop to delete last element from associative array - php

Question

I want to delete price index from each of the array.
Here is a sample code:
Array([0] => Array
(
[player_id] => 108
[trnmnt_team_id] => 1
[player_type] => 1
[user_team_id] => 11
[user_id] => 4
[price] => 10.00
)
[1] => Array
(
[player_id] => 151
[trnmnt_team_id] => 2
[player_type] => 1
[user_team_id] => 11
[user_id] => 4
[price] => 10.00
)
)
I tried to delete following way but it shown unexpected 'unset' (T_UNSET):
foreach ($mergeAllType as $key => $value) {
$price=$value;
$withOutPrice[]=unset($price['price']);
}

Answer 1

unset doesn't returns any value (it's language construct, not a function), you must do it following way:
unset($price['price']);
$withOutPrice[] = $price;

Answer 2

Tomas.lang's answer works fine if you know the last index's key. However if you don't know the name of the last key you could use the following:
unset(end($price));
$withOutPrice = $price;

Answer 3

You already got your answers regarding your foreach loop.
So, let me give you a different answer, using array_map and an anonymous function ;-)
<?php
$src = array(
array (
'player_id' => 108,
'trnmnt_team_id' => 1,
'player_type' => 1,
'user_team_id' => 11,
'user_id' => 4,
'price' => 10.00,
),
array (
'player_id' => 151,
'trnmnt_team_id' => 2,
'player_type' => 1,
'user_team_id' => 11,
'user_id' => 4,
'price' => 10.00,
),
);
$withOutPrice = array_map(
function($e) {
unset($e['price']);
return $e;
},
$src
);
var_export($withOutPrice);

Answer 4

If you want to unset() all off the price keys in your array you can use array_walk()
array_walk($arr, function(&$array) {
unset($array['price']);
});
Just replace $arr with whatever your arrays name is, i.e. $teams.
If you want to have two arrays, one with price and one without price you could duplicate the array before doing the above; i.e.
$teams = <DATASOURCE>
$teamsWithoutPrice = $teams;
array_walk($teamsWithoutPrice, function(&$array) {
unset($array['price']);
});
Then if you print out your $teamsWithoutPrice array you'll have your array with the price key removed.
Hope it helps.