How to remove a single element from a PHP session array?

Question

I am having a php session array like

('10/01/2017, '13/02/2017', '21/21/2107')

Now how to add and element or remove an element from this array in O(1)

Which element do you want to remove, or what do you want to add? — Qirel
– Qirel, Commented Jun 12, 2017 at 14:07
You need either unset(), array_shift() or array_pop(), depending on what you want to do. — Bojan Radaković
– Bojan Radaković, Commented Jun 12, 2017 at 14:07

Jerodev · Accepted Answer · 2017-06-12 14:50:11Z

2

The easiest way is to get the value, remove the item, and set the session variable again.

$data = $_SESSION['array'];    // Get the value
unset($data[1]);               // Remove an item (hardcoded the second here)
$_SESSION['array'] = $data;    // Set the session value with the new array

Update:
Or like @Qirel said, you can unset the item directly if you know the number.

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

Update 2
If you want to remove the element by its value, you can use array_search to find the key of this element. Note that if there are to elements with this value, only the first will be removed.

$value_to_delete = '13/02/2017';
if (($key = array_search($value_to_delete, $_SESSION['array'])) !== false)
    unset($_SESSION['array'][$key]);

edited Jun 12, 2017 at 14:50

answered Jun 12, 2017 at 14:08

Jerodev

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6 Comments

Qirel Over a year ago

Why not just unset($_SESSION['array'][1]);?

Qirel Over a year ago

I mean, yours will work and achieve the same result - but its an extra two lines ;-)

deepak asai Over a year ago

I do not know the index value.. i jus to want to delete rhe element say '13/02/2017'.. How can i do that..?

deepak asai Over a year ago

Thank you soo much

Gem Over a year ago

@Jerodev Can you pls help me with webdeveloper.com/d/385233-how-to-delete-the-item-from-table

|

Chukwu Remijius · Accepted Answer · 2017-06-12 14:13:19Z

0

To delete and element from an array use unset() function:

 <?php
  //session array O
  unset(O["array"][1]);
 ?>

answered Jun 12, 2017 at 14:13

Chukwu Remijius

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