Get min value in PHP array and get corresponding key

Asked
Active3 hr before
Viewed126 times

7 Answers

arrayvalue
90%

Stack Overflow Public questions & answers ,Thanks for contributing an answer to Stack Overflow!,Asking for help, clarification, or responding to other answers., Dupe: stackoverflow.com/questions/1588353/… – KingKongFrog Aug 15 '12 at 5:04

This will return the first index that has the minimum value in the array. It is useful if you only need one index when the array has multiple instances of the minimum value:

$index = array_search(min($my_array), $my_array);

This will return an array of all the indexes that have the minimum value in the array. It is useful if you need all the instances of the minimum value but may be slightly less efficient than the solution above:

$index = array_keys($my_array, min($my_array));
load more v
88%

min — Find lowest value,(PHP 4, PHP 5, PHP 7, PHP 8),max() - Find highest value, An array containing the values.

load more v
72%

Tutorial Guruji ,Online Free Tutorials Guruji Guide & Materials – Solved Questions Answers, I am trying to use a for loop in javascript to create a a table that displays * and for each row the columns increase by 1 * , How can i align all the input fields in one line using bootstrap form?

array_keys($array, min($array));
65%

I have an array of values $board_id, and I want to get the array of all the keys for the minimum values.,Here's my solution, but I don't think it is really intuitive.,Please be sure to answer the question. Provide details and share your research!, What is the Biblical basis for civil disobedience, by not wearing a mask in the midst of COVID-19, despite health department rules?

This should be O(n)* where n is count($board_id).

$mapped = array_map(function($id) use($boardkey_to_values) {
   return array($boardkey_to_values[$id], $id);
}, $board_id);
asort($mapped);
list($min_value, $id) = reset($mapped);
$min_ids = array($id);
while (list($value, $id) = next($mapped)) {
   if ($value == $min_value) {
      $min_ids[] = $id;
   } else {
      break;
   }
}
load more v
75%

Sometimes, you need to get minimum key value of your array but you try to get with loop and any function etc, but in bellow example you can see we can get smallest key value from our php array by using min() and array_keys(). So, let's try to use in your code this way:

$myArray = ['2' => 'Hey', '4' => 'Hello', '1' => 'Hi', '3' => 'GH'];
$new_key = min(array_keys($myArray));
$new_val = $myArray[$new_key];
print_r($new_val);
40%

First of all, how do we return multiple values from a C function? We can do it either using structures or pointers. We have created a structure named pair (which contains min and max) to return multiple values. ,Write a C function to return minimum and maximum in an array. Your program should make the minimum number of comparisons. ,And the function declaration becomes: struct pair getMinMax(int arr[], int n) where arr[] is the array of size n whose minimum and maximum are needed. ,Find the smallest and second smallest elements in an array

22%

You can check if an array contains a specific value and get its first corresponding key using the array_search() function. You can also use in_array() if you just want to know whether an array contains a specific element and are not interested in its position. Consider using the array_key_exists() function when you want to check if the array uses a given key.,If you want to look up multiple elements in an array, it's usually faster to check if it contains a particular value by first flipping the array with array_flip() and then using array_key_exists().,You can get only unique values from an array using the array_unique() function. Notice that the function will preserve the keys of the first unique elements:,If you ever want to generate an associative array with different keys and the same value assigned to each key, you can simply use the array_fill_keys() function.

Here are a few examples of creating arrays in PHP:

$first = array(10, "Apple", 20, -18, "Monkey");
print_r($first);
/* Array
(
    [0] => 10
    [1] => Apple
    [2] => 20
    [3] => -18
    [4] => Monkey
) */

$second = [10, "Apple", 20, -18, "Monkey"];
print_r($second);
/* Array
(
    [0] => 10
    [1] => Apple
    [2] => 20
    [3] => -18
    [4] => Monkey
) */

$third = [10, 5 => "Apple", 2 => 20, -18, "Monkey"];
print_r($third);
/* Array
(
    [0] => 10
    [5] => Apple
    [2] => 20
    [6] => -18
    [7] => Monkey
) */
load more v

Other "array-value" queries related to "Get min value in PHP array and get corresponding key"