How to get the last value in multiselect field using PHP

Question

I have a multi-select form feeding from database, if I implode it with comma separated, I will get values like item1,item2,item3. However, I only want to get the last selected item which is item3 in d case above. I also tried to explode to split it but didn't work out

this is my code below

<select multiple="multiple" name="enrolledterm[]" style="width: 100%;" data-toggle="select2" data-placeholder="Select Terms.." data-allow-clear="true" required="required">
            <option value="<?php echo $term_one_date ?>">Winter Term ends on <?php echo $term_one_date ?></option>
            <option value="<?php echo $term_two_date ?>">Spring Term ends on <?php echo $term_two_date ?></option>
            <option value="<?php echo $term_three_date ?>">Summer Term ends on <?php echo $term_three_date ?></option>
                </select>

$enrolled_term = explode(" ", $_POST['enrolled_term']) ;

Possible duplicate of [What's the best way to get the last element of an array without deleting it?](https://stackoverflow.com/questions/3687358/whats-the-best-way-to-get-the-last-element-of-an-array-without-deleting-it) — mickmackusa, Jul 31 '17 at 05:24

Sahil Gulati · Answer 1 · 2017-07-30T10:28:06.720

2

You can try this simplest one, Here we are using end function.

Try this with an example

$enrolled_term=end($_POST['enrolled_term']);

edited Jul 30 '17 at 10:28

answered Jul 30 '17 at 10:23

Sahil Gulati

15,028
4
24
42

score 1 · Answer 2 · answered Jul 30 '17 at 10:20

1

Try this : to get last selected value (from array)

$total_selected = count($_POST['enrolled_term']);
$enrolled_term = $_POST['enrolled_term'][$total_selected-1] ; //last index

answered Jul 30 '17 at 10:20

B. Desai

16,414
5
26
47

score 1 · Answer 3 · answered Jul 30 '17 at 10:21

1

To get the last element of an array, use array_slice():

$lastElement = array_values(array_slice($_POST['enrolled_term'], -1))[0];

array_slice — Extract a slice of the array

answered Jul 30 '17 at 10:21

Milan Chheda

8,159
3
20
35

sorry one more thing, its working well on localhost, but throwing internal server error on cpanel. and my cpanel not recording any error log. – Ademaintain Jul 30 '17 at 10:53
Is it throwing error at this line? because this code isn;t throwing any error or warning. You can check here: https://3v4l.org/5oXGi – Milan Chheda Jul 30 '17 at 10:57
Yes i can see its not throwing any error from above, and it works well on localhost too, but when i uload online, it throws internal server error, and when i comment it ouit, site reloads fine. Im not sure maybe my server nt supported. – Ademaintain Jul 30 '17 at 10:59
Hmm, this are PHP functions, no additional installations required. May be, check if `$_POST` is not empty, only than should this code execute. – Milan Chheda Jul 30 '17 at 11:04
I use $enrolled_term=end($_POST['enrolled_term']); and it worked, i guess array_slice is using higer version of php not supported by my server because it works well on localhost. Thanks so much all the same – Ademaintain Jul 30 '17 at 11:11
That's very strange. this functions are not deprecated. – Milan Chheda Jul 30 '17 at 11:16

score 1 · Answer 4 · answered Jul 30 '17 at 10:22

1

Just get last item in $_POST['enrolled_term'] . Use end() in PHP end($_POST['enrolled_term']) or $_POST['enrolled_term'][count($_POST['enrolled_term']) - 1]

answered Jul 30 '17 at 10:22

Giang Le

6,446
4
23
26

score 0 · Answer 5 · answered Jul 30 '17 at 10:22

0

Use count() function to get the last items which equals count-1

$terms = explode(" ", $_POST['enrolled_term']) ;
$enrolled_term =$terms[count($terms)-1];

answered Jul 30 '17 at 10:22

Osama

2,912
1
12
15

How to get the last value in multiselect field using PHP

5 Answers5