PHP won't execute code in cmd

When I execute

s3cmd put --acl-public --guess-mime-type /html/file.png s3://bucket/files/file.png

via cmd in putty it works perfectly, h开发者_高级运维owever when I attempt to execute this via PHP :

system("s3cmd put --acl-public --guess-mime-type /html/file.png s3://bucket/files/file.png");

nothing happens. Does anyone have an idea of why it is not working? Do I have to modify a setting in php.ini or am I doing something wrong?

I'll second the recommendation to look at the Apache log file, but I'll wager that this is a permissions issue (I've had that problem...). Does Apache (httpd?) have read/write access to /html/file.png and s3://bucket/files/file.png? Does s3cmd require special permissions? Do you need to use gksudo?

The s3cmd looks in a users home directory for the .s3cfg file. In your case, apache is probably the user running the program and apache doesn't have a .s3cfg file.

You need to run this again as the user that you intend to use s3cmd with.

/usr/bin/s3cmd --configure

There's maybe so restriction on the system command, you should try to look in the error_log, increase the error_reporting level or disable the safe_mode in php.ini

there is some issue executing s3cmd from a php file (apache user) s3cmd can't find the s3cfg file, i put it in the command a it work:

s3cmd -c /var/www/.s3cfg put file...