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<?php

function camel_to_snake($input)
{
    return strtolower(preg_replace('/(?<!^)[A-Z]/', '_$0', $input));
}
function snakeToCamel($input)
{
    return lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', $input))));
}

nazrdogan

#include <dht.h>

dht DHT;

#define DHT11_PIN 5

const long oneSecond = 1000;  // a second is a thousand milliseconds
const long oneMinute = oneSecond * 60;
const long oneHour   = oneMinute * 60;
const long oneDay    = oneHour * 24;