CODEWITHSUNDEEP
phparrays
Paradigm
Paradigm

Reputation: 371

Checking whether each part of array as numeric

I currently have an variable that contains the below array. Each part of the array is user submitted how would I go about checking whether each part of the array is an integer value and if it's not then dropping that part of the array?

Array ( [0] => 3 [1] => 4 [2] => 17 [3] => 5 [4] => 6 [5] => 11 [6] => 7 [7] => 8 [8] => 9 [9] => 15 [10] => 16 [11] => 18 [12] => 10 [13] => 12 [14] => 13 [15] => 14 )

I'm storing the array inside $forums and I've tried array_map("ctype_digit", $forums);

Upvotes: 2

Views: 141

Answers (4)

hemnath mouli
hemnath mouli

Reputation: 2755

Use array_filter with is_int

$filtered = array_filter($array, 'is_int');

You can use like this. Simple.

Upvotes: 2

Vipin Singh
Vipin Singh

Reputation: 543

Loop through the array and check value array is numeric or not if not then delete that key.

foreach($yourArray as $key => $value)
{
   if (!is_numeric($value))
   {
      unset($yourArray[$key]);
   }
}

Upvotes: 0

callback
callback

Reputation: 4122

You can use array_filter to get the result array with 'is_numeric' parameter:

$yourArray = Array( [0] => 3 [1] => 4 [2] => 17 [3] => 5 [4] => 6 [5] => 11 [6] => 7 [7] => 8 [8] => 9 [9] => 15 [10] => 16 [11] => 18 [12] => 10 [13] => 12 [14] => 13 [15] => 14 );
$filtered = array_filter($yourArray, 'is_numeric');

Upvotes: 6

Littlebobbydroptables
Littlebobbydroptables

Reputation: 3731

Simply

<?php

$a = [1,2,3,4,5,6,'test',7,8,9];

foreach($a as $key => $value) {
    if(!is_int($value)) {
        unset($a[$key]);
    }
}

Upvotes: 1

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