CODEWITHSUNDEEP
php
rubo77
rubo77

Reputation: 20845

PHP: Number of all elements in an array

Is there a way to find out how many value-elements are in one array in all nesting levels?

I want to find out how many are in $_REQUEST to give out a warning if the limit dictated by the max_input_vars directive is nearly reached?

I want to count only the real values, so array-elements should not be counted if they are another array (see http://pastebin.com/QAKxxqJf)

Upvotes: 2

Views: 838

Answers (5)

muslim-idris
muslim-idris

Reputation: 26

This is my solution for PHP <= 5.2

/**
 * Counts only the real values, so array-elements
 * are not counted if they are another array.
 *
 * @param array $array
 * @return int
 * @author Muslim Idris
 */
function count_recursive($array) {
    $count = 0;
    foreach ($array as $v) {
            if (is_array($v)) $count += count_recursive($v);
            else $count++;
    }
    return $count;
}

Upvotes: 1

letiagoalves
letiagoalves

Reputation: 11302

Use array_walk_recursive to count all elements that are not of type array or object:

$count = 0;
array_walk_recursive($a, function($v) use(&$count) {
    if(!is_object($v)) ++$count;      //or if(is_string($v))
});

Upvotes: 2

rubo77
rubo77

Reputation: 20845

I cannot use count($_REQUEST, COUNT_RECURSIVE), so I used:

function count_recursive($array) {
  $count = 0;
  foreach ($array as $id => $_array) {
    if (is_array ($_array)) $count += count_recursive ($_array);
    else $count += 1;
  }
  return $count;
} 
$num=count_recursive($_REQUEST);
$max=ini_get('max_input_vars');
$debug=true;
if($debug and $max - $num < 50) {
  echo "Warning:Number of requests ($num) is near the value of max_input_vars:$max";
}

(although there is still a strange thing is on my testing server, but thats another question: why is the number of elements in $_REQUEST smaller than the limit i set by max_input_vars? and maybe a bug in PHP)

Upvotes: 0

Sunil Verma
Sunil Verma

Reputation: 2500

check following link for all option of using count function

http://php.net/manual/en/function.count.php

Upvotes: -2

mamdouh alramadan
mamdouh alramadan

Reputation: 8528

use: count($array_name, COUNT_RECURSIVE);

as count method takes a second argument which is the mode. int COUNT_NORMAL or COUNT_RECURSIVE

Upvotes: 6

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