I've been using PHP for linux command-line applications. Some are quite
large. I've built the code to combine the mainline plus everything it
calls into a single file to avoid portability issues with include
libraries. I've built the code to compress the resulting file using
gzdeflate after optionally stripping comments and excess whitespace.
As a result, I have the uncompressed code in a variable after using
gzinflate. Executing it cleanly has become an issue, and I'm looking
for a solution. I see the following possible solutions:
1. Build the mainline as a function, write the decompressed code to a
temp file, include the temp file, delete the temp file, then invoke the
mainline function. This works reasonably well with the exception that
magic constants like __FILE__ are set during the parsing of the include
file. The result is that for example __FILE__ contains the name of the
temp file, which causes results other than the original. I know of no
way to change __FILE__ once it has been set, and if the application
relaunches using __FILE__ it is attempting to invoke the now-missing
temp file.
2. Build the mainline as it was originally coded, write the decompressed
code to a temp file, include the temp file. The problem with this
approach is that if the application issues an exit() the temp file will
be left laying around. Additional issues may exist but this one is imo
a show-stopper.
3. Pass the decompressed code to eval(). This approach is rather a joke
due to the well-intentioned efforts of whoever chose to consider eval()
a security exposure and modified echo to tell the user it is eval'ed code.
Approach (1) seems the most promising but using it will require that the
target applications be specially coded with regard to __FILE__ and
possibly other magic constants. I really don't want to place special
requirements on the coding of the target application.
Suggestions would be appreciated, as I don't want to have to modify the
interpreter at this point. Thanks in advance.
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