在数组php中获取小于或等于number的数字

Question

PHP array:

$arr = array(0,15,60,120,2200);

I pass a $number = 12 with array value in function, then return value should be 0

and I pass a $number = 15 with array value in function, then return value should be 15

I was trying with below code but not luck

<?php
function get_less_value($arr, $number) {
    foreach ($arr as $val) {
        if ($val>= $number && $val < $number) return $val;
    }
    return end($arr);
}
echo get_less_value($arr, $number);

?>

Answer 1

Is array_filter is the method your looking for. I guess there are enough ways to do this :)

$array = [0, 15, 60, 120, 2200];
$number = 15;
$filtered = array_filter($array, function($element) use ($number) {
   return ($element <= $number);
});
// $filtered = [0, 15];

$max = max($filtered); //15