How do I delete an item in an array that is in a session? php

Question

I have a session that contains an array. The array contains the following data:

Array ( 
    [0] => /assets/img/user_photos/thumbs/9c2310c2def9981221ec37cbbafe0370.jpg 
    [1] => /assets/img/user_photos/thumbs/286b59eb3dafe2e0cf0df50e45f10250.jpg 
    [2] => /assets/img/user_photos/thumbs/4e6012cc396252594d2a05850b0a35ae.jpg 
    [3] => /assets/img/user_photos/thumbs/49ce9031319203c1911c0b9789a83ffc.jpg 
    [4] => /assets/img/user_photos/thumbs/da21379f3dc80541a087e1c4db5f929a.jpg 
    [5] => /assets/img/user_photos/thumbs/1f46378fdd7dcf7fda580e50ca92a2d0.jpg 
)

I would like to delete an item from this array. How is this possible when the array is stored in a session?

score 7 · Accepted Answer · answered Jan 17 '12 at 13:19

7

use unset to delete elements from an array.

unset($array[1]);

answered Jan 17 '12 at 13:19

Elzo Valugi

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score 2 · Answer 2 · edited Jan 17 '12 at 13:32

2

in a non-hacked Environment the superglobal-Array $_SESSION references all data in the session. So you could delete an entry by this:

unset($_SESSION['indexToYourArray'][0]);

(you didn't mention in which session variable your index is stored). If the array is the session content the code should read:

unset($_SESSION[0]);

edited Jan 17 '12 at 13:32

Dau

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answered Jan 17 '12 at 13:17

pscheit

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Vishnu Choudhary · Answer 3 · 2012-01-18T06:14:25.843

2

You can use

unset($_SESSION['Array_name']['index_tobe_delete']);

OR

$_SESSION['Array_name']['index_tobe_delete'] = "" ;

edited Jan 18 '12 at 06:14

answered Jan 17 '12 at 13:23

Vishnu Choudhary

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That second one, with the `==`, will only compare, not unset. – Umbrella Jan 17 '12 at 13:29
1

-1, even with `= ""` it will not unset but rather set it to an empty string. – Kaii Jan 17 '12 at 13:37

score 1 · Answer 4 · answered Jan 17 '12 at 13:19

1

You can use unset()

Eg:

$_SESSION['abc'] =  Array ('foo','bar');

to delete bar:

unset($_SESSION['abc'][1]);

answered Jan 17 '12 at 13:19

Zul

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score 1 · Answer 5 · answered Jan 17 '12 at 13:20

1

Use unset

<?php
unset($_SESSION['array'][0]);
var_dump($_SESSION);
?>

answered Jan 17 '12 at 13:20

Alex

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score 1 · Answer 6 · answered Jan 17 '12 at 13:22

1

You could unset the array item:

unset($_SESSION['array'][0]);

answered Jan 17 '12 at 13:22

h00ligan

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score 0 · Answer 7 · edited May 23 '17 at 12:17

0

use this

$array = array(0, 1, 2, 3);

unset($array[2]);
$array = array_values($array);
var_dump($array);

and for more info read this

edited May 23 '17 at 12:17

Community

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answered Jan 17 '12 at 13:19

Dau

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score 0 · Answer 8 · edited Jan 26 '12 at 01:22

0

unset($_SESSION['array_name']);

edited Jan 26 '12 at 01:22

animuson

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answered Jan 17 '12 at 13:19

Mark

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This would unset their whole array, instead of just the one item. – Umbrella Jan 17 '12 at 13:27

How do I delete an item in an array that is in a session? php

8 Answers8