Array manipulation question

[aeroswat]

Is there a way to do something like array_pop() where I can specify the key to remove and then it will drop the rest of them down?

 

Like if array contains the following

Key -> Value

0          A

1          B

2          C

3          D

4          E

 

And I remove key 2 it'll be like this

Key -> Value

0          A

1          B

2          D

3          E

 

instead of this

Key  -> Value

0          A

1          B

2          Null

3          D

4          E

[Alex]

<?php
$arr = array(
0 => 'A',
1 => 'B',
2 => 'C',
3 => 'D',
4 => 'E'
);

unset($arr[2]);

print_r($arr);

 

unset

[aeroswat]

<?php
$arr = array(
0 => 'A',
1 => 'B',
2 => 'C',
3 => 'D',
4 => 'E'
);

unset($arr[2]);

print_r($arr);

 

unset

 

Cool didnt know unset did that Thanks

[Adam]

You could also use array_values to reorder the keys, as your example does.

[aeroswat]

You could also use array_values to reorder the keys, as your example does.

 

I tried to use array_values like this

 

	$arr = array(1,2,3,4,5);
print_r($arr);
unset($arr[2]);
print_r($arr);
array_values($arr);
print_r($arr);

 

but just got this

 

Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 )

Array ( [0] => 1 [1] => 2 [3] => 4 [4] => 5 )

Array ( [0] => 1 [1] => 2 [3] => 4 [4] => 5 )

 

It didn't re-key them for me :/

[Alex]

In my original post I didn't realize that you wanted the keys reset. You can do something like this to get that effect:

 

<?php
$arr = array(
0 => 'A',
1 => 'B',
2 => 'C',
3 => 'D',
4 => 'E'
);

unset($arr[2]);

$new_arr = array_combine(range(0, sizeof($arr) - 1), array_values($arr));

print_r($new_arr);

[aeroswat]

In my original post I didn't realize that you wanted the keys reset. You can do something like this to get that effect:

 

<?php
$arr = array(
0 => 'A',
1 => 'B',
2 => 'C',
3 => 'D',
4 => 'E'
);

unset($arr[2]);

$new_arr = array_combine(range(0, sizeof($arr) - 1), array_values($arr));

print_r($new_arr);

 

Thank you Alex! Works perfectly Gonna have to look into this function. Seems like you are just splitting the array into what was before and what was after and pulling them together. Would this be a bad idea to do on a large SESSION array especially if I am not using any kind of temporary array to store it in? like

 

$_SESSION['results'] = array_combine(range(0, sizeof($_SESSION['results']) - 1), array_values($_SESSION['results']));

 

I couldn't imagine so but I'm just making sure Thanks again tho Alex

[jcbones]

You could also use:

 

unset($arr[2]);

sort($arr);

print_r($arr);