PHP error_log from CLI

Question

I'm calling a php script using CRON.

The script use a lot the error_log function :

error_log('My error');

Seems like it's not working from CLI.

I can make it work by using more arguments :

error_log('My error', 3, '/fullpath/to/my/log');

But I would like to avoid modifying everything (my script include a lot of other scripts).

As far as I understand, PHP is using a different php.ini when called from command line.

Is there a way to force it to use the normal php.ini ?

I need my cron to execute this script in the exact same environment that from the web.

Are there problems I should be aware of ? Others differences that could break my code ?

Edit :

I found a way to tell php which php.ini file to use (-c):

/path/to/php5 -c /path/to/php.ini /path/to/script.php

But it's not working. In my script shell_exec('php --ini') is still showing cli/php.ini...

Alex Blex · Accepted Answer · 2016-02-05 16:19:34Z

3

If you need your cron to execute this script in the exact same environment that from the web, just call it from the web:

setup a virtual host (local only, e.g. on port 4242, locked with iptables)
run cron as curl http://localhost:4242/script.php

It will run the script as a webserver user, using all environment variables, configs, and logs.

To solve the exact problem with logging, just redirect stderr to a file:

/path/to/php5  /path/to/script.php 2> /fullpath/to/my/log

The lst part: shell_exec('php --ini') shows default cli/php.ini because you start new process with default config. To show custom config either specify it in the command line

shell_exec('php --ini -c /path/to/php.ini')

or show info for current process:

phpinfo(INFO_GENERAL)

edited Feb 5, 2016 at 16:19

answered Feb 5, 2016 at 16:01

Alex Blex

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3 Comments

FLX Over a year ago

The script is outside root path to avoid it being called by users. But if I can't resolve this i'll follow your advice. Everything should be fine with just php -c...

Alex Blex Over a year ago

If you give up with stderr redirection, read the bullet points in the answer how to setup it properly to avoid being called by users.

FLX Over a year ago

Oh, I can see now the stupidity of what I did. Cron called with good php.ini, but inside of it shell exec have no -c flag... Took me so much time to see the light ^^

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