What would be the most efficient way of counting the number of times a value appears inside an array?
Example Array ('apple','apple','banana','banana','kiwi')
Ultimately I want a function to spit out the percentages for charting purposes (e.g. apple = 40%, banana = 40%, kiwi = 20%)
Just put it through array_count_values. The percentages should be easy...
$countedArray = array_count_values($array);
$total = count($countedArray);
foreach ($countedArray as &$number) {
$number = ($number * 100 / $total) . '%';
}
counts['apple']*100/count($array) to get percentage!Use array_count_values():
<?php $array = array(1, "hello", 1, "world", "hello"); print_r(array_count_values($array)); ?>The above example will output:
Array ( [1] => 2 [hello] => 2 [world] => 1 )
$a = Array ('apple','apple','banana','banana','kiwi');
$b = array_count_values($a);
function get_percentage($b,$a){
$a_count = count($a);
foreach ($b as $k => $v){
$ret[$k] = $v/$a_count*100."%";
}
return $ret;
}
$c = get_percentage($b,$a);
print_r($c);
