php - How to run crontab for every 36 hours -

i creating automated cron tab using php. need run cron tab following times.

24 hours or 36 hours or 48 hours or 72 hours or 96 hours.

i confused setup in cron tab 36 hours.

how set cronjob runs every 36th hours? please advise

i don't think can specify further 24 hours.

you have run every hour, , each time hits have increment var stored in database or file, when var hits 36 run script , reset 1.

edit: on same note have run every 12 hours , have increment 12

for example :

$var = (int) file_get_contents('count.txt');  $var++; if($var === 36) {    //run script    //update count.txt }else {    //update count.txt    die();  }