Delete/unset from a global array using a function / method - php

Question

I have an GLOBAL array that keeps all the configurations, it looks like this:
$_SOME_ARRAY = array(
'some_setting' => array(
'some_value' => '1',
'other' => 'value'
),
'something_else' => 1,
);
How can I delete keys from this array, using some function like:
deleteFromArray('some_setting/other')
I have tried different things, but can't seem to find a way, to delete it without manually calling unset($_SOME_ARRAY['some_setting']['other'])
EDIT
I have tried working on with it. The only solution I see so far, is by "rebuilding" the original array, by looping through each value and verify. The progress:
public static function delete($path) {
global $_EDU_SETUP;
$exploded_path = explode('/', $path);
$newConfig = array();
$delete = false;
foreach($exploded_path as $bit) {
if(!$delete) {
$loop = $_EDU_SETUP;
} else {
$loop = $delete;
}
foreach($loop as $key => $value) {
if($key == $bit) {
echo 'found first: ' . $key . '<br />'; // debugging
if(!$delete) {
$delete = $_EDU_SETUP[$key];
} else {
$delete = $delete[$key];
}
} else {
$newConfig[$key] = $value;
}
}
}
$_EDU_SETUP = $newConfig;
}
The array could look like this:
$array = array(
'a' => array(
'a',
'b',
'c'
),
'b' => array(
'a',
'b',
'c' => array(
'a',
'b',
'c' => array(
'a'
),
),
)
);
And to delete $array['b']['c'] you would write Config::delete('b/c'); - BUT: It deletes whole B. It is only supposed to delete C.
Any ideas?

Answer 1

This what you can do, assuming the array has 2 levels of data.
$_SOME_ARRAY = array(
'some_setting' => array(
'some_value' => '1',
'other' => 'value'
),
'something_else' => 1,
);
function deleteFromArray($param){
global $_SOME_ARRAY ;
$param_values = explode("/",$param);
if(count($param_values) == 2 ){
unset($_SOME_ARRAY[$param_values[0]][$param_values[1]]);
}else{
unset($_SOME_ARRAY[$param_values[0]]);
}
}
deleteFromArray('some_setting/other');
print_r($_SOME_ARRAY);
You can modify the function to add more strict rules by checking if the key exists before doing unset using the function array_key_exists()

Answer 2

how do you like this ?
$_SESSION = $_SOME_ARRAY; // Btw it should be session from beginning...
function deleteFromArray($string)
{
$array = explode("/",$sting);
foreach($array as $arrA)
{
foreach($array as $arrB)
{
unset($_SESSION[$arrA][$arrB]);
}
}
}
now you could delete more than one entry like
deleteFromArray('some_setting/some_value/a_other_value')
but take care of using dim1array names in dim2array...
of corse you could add more foreach or make a recursiv function out of it to get deep in the array

Answer 3

do you want to delete particular array using a unique index(like a primary id)?, i would use a for loop to look for that particular index then delete that array...E.g delete array where the index = 1 , pls check above
foreach ($_SOME_ARRAY as $a => $key)//get all child arrays of '$_SOME_ARRAY '
{
foreach($Key as $b => $key2)//get values of the child arrays
{
if($Key[0] == 1)// if the index at[0] equals 1
{
unset($arr[$a][$b]); //delete that array
}
}
}