Wordpress error: Warning: count(): Parameter must be an array or an object that implements Countable

Question

The first line is the problem code. I don't know how to change that count to something that can work.

if(count($item[2]) > 0){
    if($item[2][0] == 'plane' || $item[2][0] == 'url'){
        if($item[2][0] == 'url'){
            $arr = explode('file/d/',$id);
            $arr1 = explode('/',$arr[1]);
            $id = $arr1[0];
        }
   }
 }
?>

Hi, this is probably caused by the fact that the $item variable is not of countable type and thus the count() function cannot be used. What is inside $item[2] and what does $item hold in the first place? — Eugenio
– Eugenio, Commented Dec 16, 2019 at 8:50

Sami Ahmed Siddiqui · Accepted Answer · 2019-12-16 09:15:14Z

2

In PHP 7.2, a Warning was added while trying to count uncountable things. To make it fix change this line:

if(count($item[2]) > 0){

with this:

if(is_array($item[2]) && count($item[2]) > 0){

In PHP 7.3 a new function was added is_countable, specifically to address the E_WARNING issue. If you are using PHP 7.3 so you can change this line:

if(count($item[2]) > 0){

with this:

if(is_countable($item[2]) && count($item[2]) > 0){

answered Dec 16, 2019 at 9:15

Sami Ahmed Siddiqui

2,3861 gold badge18 silver badges30 bronze badges

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

Comments

MEDZ · Accepted Answer · 2019-12-16 08:57:26Z

0

I believe that in some cases this $item[2] returns null or any other non-countable value. Starting from PHP 7, you will not be able to count an object that not implementing countable. So you need to check first if it's an array:

if(is_countable($item[2])){ // you can also use is_array($item[2])
    if(count($item[2]) > 0){
        //rest of your code
    }
}

Another way (though not preferred) is to pass your object to ArrayIterator. That will make it iteratable:

$item_2 = new ArrayIterator($item[2]);
if(count($item_2) > 0){
   //rest of your code
}

answered Dec 16, 2019 at 8:57

MEDZ

2,2952 gold badges17 silver badges19 bronze badges

Comments

Dmitry Leiko · Accepted Answer · 2019-12-16 09:13:00Z

0

Try code below:

if (is_array($item[2]) || $item[2] instanceof Countable || is_object($item[2])) {
    if(count($item[2]) > 0){
        if($item[2][0] == 'plane' || $item[2][0] == 'url'){
            if($item[2][0] == 'url'){
                $arr = explode('file/d/',$id);
                $arr1 = explode('/',$arr[1]);
                $id = $arr1[0];
            }
        }
    }
}

Check it

answered Dec 16, 2019 at 9:13

Dmitry Leiko

4,4923 gold badges29 silver badges48 bronze badges

Collectives™ on Stack Overflow

Wordpress error: Warning: count(): Parameter must be an array or an object that implements Countable

3 Answers 3

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related