Undocumented programmers are detained after the ――linux can run normally, the PHP system will not run when called! Solution Solutions

Undocumented programmers are detained after ――linux can function properly, and the PHP system does not run when called!!!!!
My own CLI program, which works under Linux (with parameters), but cannot be executed with the help of a PHP exec call,
Also, the returned array is not empty with the isset test, and the output has no data.
To be sure, Linux and PHP are OK, because the other programs are normal, called this one.

What's going on? Where does this problem start? Never met before.

A little urgent, to submit the source right away!!!!!!!!!!!!

I have a soft test of the DS certificate, should not be detained it, haha ...

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Try using the system call
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is not a user rights problem AH
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In other words, the operation of the PHP exec is not a general problem, I have tried to test the code is dead or alive can not ... Finally had to give up
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Permission set to-rwxr-xr-x

Open all the wrong information and see what's wrong with the report!
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discuss
The code is not good, and it won't be a problem.
I use PHP splicing with the parameters of the command is the original mode of copy on Linux run is possible, and get the correct output.

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Not only user rights, but also the operating environment, there may be differences, so you have to put the exec () that line of code out AH.

Although the real reason is not necessarily here, although this does not necessarily solve your problem, but you can not let everyone guess what you do to judge the reason?
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It is almost certain that your a.out has performed some taboo operations in the case of-l 3.

BTW: When $result = False will appear "isset ($result) = = 1 and Print_r ($result) is empty" situation, this is nothing strange.
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Explore
It is almost certain that your a.out has performed some taboo operations in the case of-l 3.

BTW: When $result = False will appear "isset ($result) = = 1 and Print_r ($result) is empty" situation, this is nothing strange.

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