gcc - How to compile c code in php - linux environment -

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i using fedora 14 , gcc compiler compile c code. using php(lampp) trying call helloworld. trying following code

exec('gcc hello.c', $x,$y); echo $x; //line 4 echo "<br/>>>> ";  echo $y;    notice: array string conversion in /opt/lampp/htdocs/learning/index.php on line 4 array >>> 1

any idea how compile , output. plz :)

i did the

 $compilecode=shell_exec("gcc -o hello hello.c 2>&1");  output:  failed create /var/cache/ccache/tmp (permission denied) in echo.

what permission issue.

yum remove cache did trick


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