CronJob BackUp: run every day, week, month - php

Question

I did some google search for this but all I can find is separate things and the cPanel's interface is a little bit confusing to be honest.
Basically, I have this script to create files+mysql backup:
<?php
$auth = base64_encode(":");
$domain = "";
$theme = "";
$secure = false;
$ftp = false;
$ftpserver = "";
$ftpusername = "";
$ftppassword = "";
$ftpport = "21";
$ftpdirectory = "/";
if ($secure) {
$url = "ssl://" . $domain;
$port = 2083;
} else {
$url = $domain;
$port = 2082;
}
$socket = fsockopen($url, $port);
if (!$socket) {
exit("Failed to open socket connection.");
}
if ($ftp) {
$params = "dest=ftp&server=$ftpserver&user=$ftpusername&pass=$ftppassword&port=$ftpport&rdir=$ftpdirectory&submit=Generate Backup";
} else {
$params = "submit=Generate Backup";
}
fputs($socket, "POST /frontend/" . $theme . "/backup/dofullbackup.html?" . $params . " HTTP/1.0\r\n");
fputs($socket, "Host: $domain\r\n");
fputs($socket, "Authorization: Basic $auth\r\n");
fputs($socket, "Connection: Close\r\n");
fputs($socket, "\r\n");
while (!feof($socket)) {
$response = fgets($socket, 4096);
echo $response;
}
fclose($socket);
?>
I would like to run that PHP file so it backups up my stuff exactly like the cPanel would on any regular shared hosting plan: Daily, Weekly and Monthly. I want to do this because of my website got screwed up because the hosting company backup was not working properly.
Do I need to create separate cron jobs for daily, weekly, monthly or I can do all of them at once?
If I input a command in the Command field, is it enough to get it working or I need to setup the other input fields?
What's the correct command to run my backups as explained above?
Thanks!

Answer 1

In that interface, you have a few different options for the command,
php -q /path/to/your/script.php
would work.
If you add #!/usr/bin/php -q to the top of your PHP script, then you can just call it directly from cron:
/path/to/your/script.php
The general answers to your questions (not having to do with that web interface) are covered here:
How to execute a php script every day
This might also be helpful, a random but pretty decent reference on crontab syntax:
http://www.thegeekstuff.com/2009/06/15-practical-crontab-examples/