Counting occurrence of specific value in an Array with PHP [duplicate]

Answer 1

This is exactly what you looking for

<?php
 $MainString = 'Yellow Green Orange Blue Yellow Black White Purple';
 $FinderString = 'Yellow Blue White';
 $mainArray = explode(" ", $MainString);
 $findingArray = explode(" ", $FinderString);
 $count = 0;
 $eachtotal = array_count_values($mainArray);
 foreach($findingArray as $find){

    $count += $eachtotal[$find];
 }
 echo $count;


?>

Answer 2

function array_count_values_of($value, $array) {
    $counts = array_count_values($array);
    return $counts[$value];
}

Not native, but come on, it's simple enough. ;-)

Alternatively:

echo count(array_filter($array, function ($n) { return $n == 6; }));

Or:

echo array_reduce($array, function ($v, $n) { return $v + ($n == 6); }, 0);

Or:

echo count(array_keys($array, 6));

Answer 3

Assume we have the following array:

     $stockonhand = array( "large green", "small blue", "xlarge brown", "large green", "medieum yellow", "xlarge brown",  "large green");

1) Copy and paste this function once on top your page.

    function arraycount($array, $value){
    $counter = 0;
    foreach($array as $thisvalue) /*go through every value in the array*/
     {
           if($thisvalue === $value){ /*if this one value of the array is equal to the value we are checking*/
           $counter++; /*increase the count by 1*/
           }
     }
     return $counter;
     }

2) All what you need to do next is to apply the function every time you want to count any particular value in any array. For example:

     echo arraycount($stockonhand, "large green"); /*will return 3*/

     echo arraycount($stockonhand, "xlarge brown"); /*will return 2*/

Answer 4

As of PHP 5.4.0 you can use function array dereferencing for the index [6] of the array resulting from array_count_values():

$instances = array_count_values($array)[6]; //$instances will be equal to 4

Answer 5

This solution may be near to your requirement

$array = array(1, 2, 3, 3, 3, 4, 4, 5, 6, 6, 6, 6, 7);
print_r(array_count_values($array));

Result:

Array
( [1] => 1 ,[2] => 1 , [3] => 3, [4] => 2,[5] =>1, [6] => 4, [7] => 1 )

for details.

Answer 6

Say I have an array like this:

$array = array('', '', 'other', '', 'other');

$counter = 0;
foreach($array as $value)
{
  if($value === '')
    $counter++;
}
echo $counter;

This gives the number of times ' ' is repeating in the array