2

I know that in_array() does not work on multidimensional arrays. I tried to implement this in my code:

function in_array_r($needle, $haystack, $strict = false) {
    foreach ($haystack as $item) {
        if (($strict ? $item === $needle : $item == $needle) || (is_array($item) && in_array_r($needle, $item, $strict))) {
            return true;
        }
    }

    return false;
}

But I always get following message

Fatal error: Uncaught Error: Call to undefined function in_array_r()

There is a code where I need to check does my value exist in array:

class classification {
  foreach ($valueArray as $values => $arrayEV) {
    $valueCode = $arrayEV;
       #NOW I NEED TO CHECK DOES $valueCode EXIST IN ARRAY CALLED '$v'
 ...

But when I add

echo in_array_r("Irix", $v) ? 'found' : 'not found';

I get that fatal error.

Improve this question
5
  • Do you get the fatal error for the missing function in the same file that contains the function, or in another file? Commented Dec 28, 2017 at 13:58
  • In the same file...Function is defined in classification.php, function is called also in classification.php. Error message => <b>Fatal error</b>: Uncaught Error: Call to undefined function in_array_r() in C:\xampp\htdocs\xml\class\classification.php:82 Commented Dec 28, 2017 at 14:02
  • If it is defined inside of the class use $this->in_array_r() instead of just in_array_r(). If it is not please provide the whole class as code to your question. Commented Dec 28, 2017 at 14:11
  • It helped me, thank you. Now problem is that it returns me 'not found' in every case, I hope that I will find solution. Thank you one more time. Commented Dec 28, 2017 at 14:37
  • stackoverflow.com/questions/12583353/… Commented Dec 28, 2017 at 14:40
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