<?php
$fechaA = '2018-01-01 01:11:01';
$fechaB = '2018-01-01 02:22:00';
# Formato HH:MM:SS
print("-->".$diff."\n");
PD9waHAKCiRmZWNoYUEgPSAnMjAxOC0wMS0wMSAwMToxMTowMSc7CiRmZWNoYUIgPSAnMjAxOC0wMS0wMSAwMjoyMjowMCc7CgojIEZvcm1hdG8gSEg6TU06U1MKJGRpZmYgPSBnbWRhdGUoIkg6aTpzIiwgc3RydG90aW1lKCRmZWNoYUIpLXN0cnRvdGltZSgkZmVjaGFBKSk7CnByaW50KCItLT4iLiRkaWZmLiJcbiIpOwo=