PHP Foreach If Array Last

Question

foreach( $tabs2 as $tab2 => $name ){
    $class = ( $tab2 == $current ) ? ' current' : '';
    echo("<li class='posts'><a href='?page=pigg&tab=help&tab2=$tab2' class='$class'>$name");
    echo(' |'); // If array last then do not display
    echo('</a></li>');
}

I'm using a foreach loop to create a navigation for a WordPress plugin I'm working on, but I don't want the ' |' to be displayed for the last element, the code above is what I've got so far, I was thinking of using an if statement on the commented line, but not sure what the best approach would be, any ideas? Thanks!

You can move the 2nd and 3rd echo above the first one. Then if (iteration== first_time) "do_not_echo_2nd,3rd". — Neal
– Neal, Commented Mar 14, 2012 at 10:30
Take a look at this solution: stackoverflow.com/a/29474468/1478566 — vbarbarosh
– vbarbarosh, Commented Apr 6, 2015 at 15:41

Community · Accepted Answer · 2023-11-17 20:08:53Z

64

The end() function is what you need:

if(end($tabs2) !== $name){
    echo ' |'; // not the last element
}

edited Nov 17, 2023 at 20:08

CommunityBot

11 silver badge

answered Mar 14, 2012 at 10:29

Yeroon

3,2312 gold badges25 silver badges29 bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

Kristian Matthews-Kennington Over a year ago

Thank you, this worked perfectly, I'll accept this as the answer, but I got to wait 3 minutes. xD

thasmo Over a year ago

@KristianMatthews, you nearly waited 2 years now btw. :)

terraling Over a year ago

Minor tweak, I would cache end($tabs2) in a var before the foreach loop so that the end function isn't run every time.

mikewasmike Over a year ago

What if we got two equal values in the array, 1 in the end and the other in the middle? Wouldn't this be quite misleading..

Jovin J Over a year ago

@mikewasmike you could always change the if to be if((end($tab2) !== $tab2) && (end($name) !== $name)). This would only ever trigger the second value if the first is true, which isn't too bad.

Waynn Lue · Accepted Answer · 2012-03-14 10:27:23Z

1

I find it easier to check for first, rather than last. So I'd do it this way instead.

$first = true;
foreach( $tabs2 as $tab2 => $name ){
    if ($first) {
      $first = false;
    } else {
      echo(' | ');
    }
    $class = ( $tab2 == $current ) ? ' current' : '';
    echo("<li class='posts'><a href='?page=pigg&tab=help&tab2=$tab2' class='$class'>$name</a></li>");
}

I also combined the last two echos together.

answered Mar 14, 2012 at 10:27

Waynn Lue

11.4k8 gold badges53 silver badges77 bronze badges

2 Comments

Kristian Matthews-Kennington Over a year ago

Thanks for the help, but this just immediately sets $first = true; then $first = false; essentially.

Waynn Lue Over a year ago

Hm, that's surprising -- it doesn't only echo out the break at the beginning of each non-first line?

Shahar · Accepted Answer · 2013-11-26 10:56:36Z

1

First thing you need to find out what is the last key of the array, and doing so by finding the array length, using the count() function.
Afterwords we gonna create a counter and add +1 on every loop.
If the counter and the last key are equal then it is the last key.

    $last = count($array);
    $counter = 1;
    foreach ($array as $key => $val){
    if ($counter != $last){
        // all keys but the last one
        // do something     
       $counter++; // add one to counter count
        }
        else {
            // this is for the last key
    }// end else

}// end foreach

answered Nov 26, 2013 at 10:56

Shahar

2,20919 silver badges23 bronze badges

Comments

stravanato · Accepted Answer · 2015-03-30 14:02:31Z

1

I would do this way:

$arrLi = array();
foreach( $tabs2 as $tab2 => $name ){
  $class = ( $tab2 == $current ) ? ' current' : '';
  $arrLi[] = "<li class='posts'><a href='?page=pigg&tab=help&tab2=$tab2' class='$class'>$name</a></li>";
}
echo implode('|', $arrLi);

edited Mar 30, 2015 at 14:02

answered Mar 30, 2015 at 13:38

stravanato

1466 bronze badges

Comments

Jehad Ahmad Jaghoub · Accepted Answer · 2017-10-13 15:22:20Z

1

end() is good function to use

foreach( $tabs2 as $tab2 => $name ){
if(end($tabs2)== $name)
 echo "|";
}

or you can do it manually for more understanding

  $copyofarry = $tabs2;
    $last = array_pop($copyofarry);
    foreach( $tabs2 as $tab2 => $name ){
        if($last == $name)
         echo "|";
    }

answered Oct 13, 2017 at 15:22

Jehad Ahmad Jaghoub

1,40315 silver badges23 bronze badges

Comments

Jovan Perovic · Accepted Answer · 2012-03-14 10:28:17Z

0

Something like this is possible:

$size = count($tabs2);
$counter = 0;
foreach( $tabs2 as $tab2 => $name ){
    $class = ( $tab2 == $current ) ? ' current' : '';
    echo("<li class='posts'><a href='?page=pigg&tab=help&tab2=$tab2' class='$class'>$name");
    if ( ++$counter < $size ){
        echo(' |'); // If array last then do not display     
    }
    echo('</a></li>');
}

answered Mar 14, 2012 at 10:28

Jovan Perovic

20.2k5 gold badges47 silver badges92 bronze badges

Comments

Dirk Thannhäuser · Accepted Answer · 2014-05-28 09:10:19Z

0

Why not pop the last element first? So you do not need to check if the current element is the last element in each iteration.

The function array_pop(&$array) returns the last element and removes it from the array.

<div id="breadcrumb">
    <?php 
        $lastBreadcrumb = array_pop($breadcrumb);
        foreach ($breadcrumb as $crumb){ ?>
            <a href=""><?php echo $crumb; ?></a>
        <?php } ?><span><?php echo $lastBreadcrumb?></span>
</div>

answered May 28, 2014 at 9:10

Dirk Thannhäuser

2735 silver badges9 bronze badges

Collectives™ on Stack Overflow

PHP Foreach If Array Last

7 Answers 7

5 Comments

2 Comments

Comments

Comments

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

7 Answers 7

5 Comments

2 Comments

Comments

Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related