Crontab和PHP require_once无法正常工作

Question

So I have a cron tab set up

SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/

# For details see man 4 crontabs

# Example of job definition:
# .---------------- minute (0 - 59)
# |  .------------- hour (0 - 23)
# |  |  .---------- day of month (1 - 31)
# |  |  |  .------- month (1 - 12) OR jan,feb,mar,apr ...
# |  |  |  |  .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# |  |  |  |  |
# *  *  *  *  * user-name command to be executed
  40 14 *  *  * root php /home/sites/sitename/batch/sendemailtest.php

Now here is the problem, when I run php sendemailtest.php inside the batch directory, everything works fine. But if I run it from any other directory like php /home/sites/sitename/batch/sendemailtest.php it gives me trouble.

I think it's because inside that php file is a require_once :

require_once '../includes/dbpw.php';

So I am guessing the location I call the php file messes everything up.

How do I fix this?

I haven't tried this yet, in fear it will have unintended results... but if I change HOME=/ to HOME=/home/sites/sitename/batch/ , then have it run php sendemailtest.php , would that work?

Answer 1

The cronjob is run from the home directory of the user that the crontab is associated with. There are a couple of ways to get relative paths working correctly from a cronjob like this, but the easiest in my opinion is to just change directories before calling the script.

40 14 * * * root cd /home/sites/sitename/batch && php sendemailtest.php

Answer 2

There are a few options:

1. Change the include call to be an absolute file. include('/home/sites/sitename/batch/scriptname.php') .
2. Use chdir in the top of the php file to change it's working directory. To php this will act as if the script was run from within that directory. In php: chdir('/home/sites/sitename/batch') . All scripts after this call will appear as if run from the new working directory.
3. Change the directory in the command like Glen is suggesting.