problem with PHP CLI exec() function

[anctop]

Hello,

I've been using a minimal PHP CLI (command-line interface) compiled
with cygwin as a script interpreter. It works fine for most
applications.

Recently I work on a PHP script involving execution of external
programs. Naturally I code with the functions "exec()" or "system()",
but both have failed. The error message reads :

     PHP Warning:  system(): Unable to fork [command] in
/path/script.php on line 3

What does it mean & how to fix it ?


Regards,
anctop

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