Calling specific version of python from PHP

Question

I'm setting up a big system relying on python 2.7 being run through php. The call is always something like:

exec('python test.py');

However no matter what I do PHP keeps using python 2.4 for executing my files. Because of the size of the system I can't change in the programming, but will have to make 'python' point directly to python2.7.

By searching around I have reached the conclusion that I should change the php env.

echo getenv("PYTHONPATH"); // NOTHING
echo getenv("PATH"); // /bin:/usr/bin

I can do so through putenv (for example: putenv("PATH=/usr/bin/python2.7:".$_ENV["PATH"] ), but php keeps running python 2.4 no matter what I change it to.

Hope somebody out there got a simple solution :)

Answer 1

你能不能这样做：

exec('/usr/bin/python2.7/python test.py');

Answer 2

another option, you can set path to interpreter in 1st line of script test.py

#!/usr/local/bin/python2.7 

but you need make test.py executable

chmod +x path_to_file/test.py

and run from php as

exec('path_to_file/test.py');

PS be attentive administrators sometimes disable exec function on servers for safety. disable_functions="popen,exec,system,passthru,proc_open,shell_exec" ....

Answer 3

If you can't use full path, try an alias:

alias python='/usr/bin/python2.7'
python --version
Python 2.7.2