pantsarny

<?php
function minPrice($prices)
{
    usort($prices, function ($a, $b) {
        $a = (int)preg_replace('/[^0-9]/', '', $a);
        $b = (int)preg_replace('/[^0-9]/', '', $b);
        if ($a > $b) 
            return 1;
        elseif ($a < $b)
            return -1;
        else
            return 0;
    });
    return reset($prices);
}