Shell is tcsh. PHP v5.1.6. Redhat 5.7. Safe_mode is OFF.
壳牌是tcsh。 PHP v5.1.6。 Redhat 5.7。 Safe_mode已关闭。
Running php script from the browser using exec to:
使用exec从浏览器运行php脚本：
- configure environment via source command on bash script
- 在bash脚本上通过source命令配置环境
- run a python program relying on the environment set up by the bash script (program outputs to STDOUT)
- 运行一个依赖于bash脚本设置的环境的python程序（程序输出到STDOUT）
This works from the command line ($shell = tcsh):
这适用于命令行（$ shell = tcsh）：
/bin/bash -c "source /path-to-config-bash-script/config.sh; /bin/path-to-python /path-to-python-program/prog.py 2>&1"
This does not. Python program returns an error indicating that the environment is not set up correctly (can't find certain libraries, etc.):
这没有。 Python程序返回一个错误，指示环境设置不正确（无法找到某些库等）：
<?php
....
$cmd = "/bin/bash -c \"source /path-to-config-bash-script/config.sh; /bin/path-to-python /path-to-python-program/prog.py 2>&1\"";
$ret_val = exec( $cmd, $ret_arr, $err );
?>
Quadruple-checked permissions and everything looks OK.
四重检查权限，一切看起来都不错。
Thanks!
谢谢！
1 个解决方案
#1
1
Four things to note.
有四点需要注意。
1 - PHP must not have safe_mode on to leverage exec()
1 - PHP必须没有safe_mode才能利用exec（）
2 - The shell script script needs to have #!/bin/bashto be declared at the top of the file rather than being passed into the exec()
2 - shell脚本脚本需要在文件顶部声明＃！/ bin / bashto而不是传递给exec（）
3 - The python script must have #!/usr/bin/python at the top of the script rather than attempting to execute it through the exec() statement.
3 - python脚本必须在脚本顶部有＃！/ usr / bin / python，而不是试图通过exec（）语句执行它。
4 - All directories that are traversed to get to the script must be readable.
4 - 遍历到脚本的所有目录都必须是可读的。
So the final should look like:
所以决赛应该是这样的：
$cmd = "/path-to-config-bash-script/config.sh; /path/to-python/program/prog.py 2>&1";
This should resolve all your issues.
这应该可以解决您的所有问题。
#1
1
Four things to note.
有四点需要注意。
1 - PHP must not have safe_mode on to leverage exec()
1 - PHP必须没有safe_mode才能利用exec（）
2 - The shell script script needs to have #!/bin/bashto be declared at the top of the file rather than being passed into the exec()
2 - shell脚本脚本需要在文件顶部声明＃！/ bin / bashto而不是传递给exec（）
3 - The python script must have #!/usr/bin/python at the top of the script rather than attempting to execute it through the exec() statement.
3 - python脚本必须在脚本顶部有＃！/ usr / bin / python，而不是试图通过exec（）语句执行它。
4 - All directories that are traversed to get to the script must be readable.
4 - 遍历到脚本的所有目录都必须是可读的。
So the final should look like:
所以决赛应该是这样的：
$cmd = "/path-to-config-bash-script/config.sh; /path/to-python/program/prog.py 2>&1";
This should resolve all your issues.
这应该可以解决您的所有问题。