How to remove the last element from array without using array_pop

Question

I have an string

 $Community = "1,2,3,4,";
 $ExplodeCommunity = explode(',',$Community);//Split 
 print_r($ExplodeCommunity);

Which gives

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

Now i want to remove last element in array. i tried with array_pop

  $RemovedLaste = array_pop($ExplodeCommunity);

  print_r($RemovedLaste);

But Nothing is getting Printed. How to remove the last element from array without using array_pop

Why not just use $Community = rtrim($Community, ','); instead of extra arrray function. — Saty
– Saty, Commented Sep 8, 2017 at 11:15
Your code works fine, you are trying to print an empty element. print the original array instead to confirm it worked: print_r($ExplodeCommunity); — Steve
– Steve, Commented Sep 8, 2017 at 11:17
What do you expect to see printed when you do print_r($RemovedLaste);? You've popped an empty string, so print_r() will display an empty string — Mark Baker
– Mark Baker, Commented Sep 8, 2017 at 11:20

RAUSHAN KUMAR · Accepted Answer · 2017-09-08 11:20:43Z

3

array_pop uses a reference so it will affect the original array... try this ...

$x=array_pop($ExplodeCommunity);
print_r($ExplodeCommunity);
var_dump($x);

and see what you get , btw you want to print empty value ?

edited Sep 8, 2017 at 11:20

RAUSHAN KUMAR

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answered Sep 8, 2017 at 11:15

Michał G

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5 Comments

Artem Ilchenko Over a year ago

and it prints array without last element but we need print last element

Steve Over a year ago

@ArtemIlchenko which is what the title suggests the op wants

Dan Mason Over a year ago

The last entry in ExplodeCommunity is empty so there is nothing to print?

Death-is-the-real-truth Over a year ago

OP strictly asked last element from array without using array_pop

V. Bozz Over a year ago

OP is not aware that their code already works and will behave in the very same way whatever function or language will use instead. The question should be closed.

mwweb · Accepted Answer · 2017-09-08 12:46:22Z

2

   function remove_last($Community) {

            $ExplodeCommunity = explode(',',$Community);
            $remove_empty = array_values(array_filter($ExplodeCommunity));
            $last_value_in_array =  end($remove_empty); 
            $lengh = sizeof($remove_empty) -1 ;
            unset($remove_empty[$lengh]);   
            return $remove_empty; 
    }

    $Community = "1,2,3,4,";
    print_r(remove_last($Community)); 

    Output : Array ( [0] => 1 [1] => 2 [2] => 3 )

edited Sep 8, 2017 at 12:46

answered Sep 8, 2017 at 11:38

mwweb

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1 Comment

Death-is-the-real-truth Over a year ago

OP strictly asked last element from array without using array_pop

Dan Mason · Accepted Answer · 2017-09-08 12:48:56Z

Problem found

The problem you have is the last comma , in your string '1,2,3,4,' when you explode using the code you provided below:

$Community = "1,2,3,4,";
                   //^ The value after this is an empty string ''
$ExplodeCommunity = explode(',',$Community);

This results in $ExplodeCommunity essentially being this, where the last entry is an empty string:

$ExplodeCommunity = [1,2,3,4,'']

That is why you end up with 5 entries in your Array

Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => ) 
                                                  ^ This is an empty string

The function array_pop returns the value of the last entry in that Array which in this case is an empty string ''.

$RemovedLaste = array_pop($ExplodeCommunity);
print_r($RemovedLaste); // This prints an empty string ''

The value of $ExplodeCommunity is:

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

Solution 1: Keeping the $Community value the same:

If you do array_pop twice on $ExplodeCommunity you will get 4:

$Community = "1,2,3,4,";
                   //^ The value after this is an empty string ''
$ExplodeCommunity = explode(',',$Community); 

$RemovedLaste = array_pop($ExplodeCommunity);
print_r($RemovedLaste); // This prints an empty string ''

$RemovedLaste = array_pop($ExplodeCommunity);
print_r($RemovedLaste); // This prints 4

The value of $ExplodeCommunity is:

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

Solution 2: Using rtrim to remove ending comma ,:

You can use rtrim like the below to remove the ending comma from the $Community string:

$Community = rtrim("1,2,3,4,", ',');
$ExplodeCommunity = explode(',',$Community); 

$RemovedLaste = array_pop($ExplodeCommunity);
print_r($RemovedLaste); // This prints 4

The value of $ExplodeCommunity is:

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

Other Solutions

You can use other functions such as unset/array_slice as described in other answers.

chad · Accepted Answer · 2017-09-08 11:13:16Z

0

You can use unset

unset($ExplodeCommunity[count($ExplodeCommunity) - 1] )

answered Sep 8, 2017 at 11:13

chad

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Comments

Mahesh · Accepted Answer · 2017-09-08 11:14:38Z

0

try this...

if(empty($ExplodeCommunity[count($ExplodeCommunity)-1])) {
    unset($ExplodeCommunity[count($ExplodeCommunity)-1]);
}

answered Sep 8, 2017 at 11:14

Mahesh

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1 Comment

GrumpyCrouton Over a year ago

Thank you for this code snippet, which may provide some immediate help. A proper explanation would greatly improve its educational value by showing why this is a good solution to the problem, and would make it more useful to future readers with similar, but not identical, questions. Please edit your answer to add explanation, and give an indication of what limitations and assumptions apply.

jerry · Accepted Answer · 2017-09-08 11:20:53Z

0

Give this a try:

$arr = array('hello', 'world', '2');
$arr = unset(end($arr));

This is going to 'unset' the 'end' element of the array.

answered Sep 8, 2017 at 11:20

jerry

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Comments

Narayan · Accepted Answer · 2017-09-08 11:27:17Z

0

You can also try with array_slice

array_slice : returns the sequence of elements from the array array as specified by the offset and length parameters.

$RemovedLaste = array_slice(ExplodeCommunity, 0,-1);
print_r($RemovedLaste);

answered Sep 8, 2017 at 11:27

Narayan

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Comments

BaDr Amer · Accepted Answer · 2018-09-19 08:55:51Z

0

since php 4, you can remove the last element using explode function like so :

$Community = "1,2,3,4,";
$ExplodeCommunity = explode(',', $Community,-1);
print_r($ExplodeCommunity);

that will give you :

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

answered Sep 19, 2018 at 8:55

BaDr Amer

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