Hello,
New to amc auto multiple choice, i discovered its good functionalities and then decided to build simple interface in php to launch script commands.
Well, kept reading many topics in forums and found amc-mill.zip which is simplifying procedures.
so , my experience with this stopped at the level below:
1-changed htdocs/www directory to point to folder Projects-QCM
2-extracted amc-mill.zip inside the folder.
3-tested php file:interface.php
<PHPCODE>

// Get current directory
echo getcwd() . "<br>";

// Change directory
chdir("../amc-mill/ui-scripts");

// Get current directory
echo getcwd();
echo "</br>";
//$output = exec("bash ./01.new-project.sh phpdirectamccommandline standard");

$output2 = exec("bash ./02.prepare-subject.sh phpdirectamccommandline");
$output3 = exec("bash ./03.update-marking.sh phpdirectamccommandline");
$output4 = exec("bash ./04.detect-layouts.sh phpdirectamccommandline");
$output5 = exec("bash ./05.print-copies.sh phpdirectamccommandline");

?>

</PHPCODE>

RESULT= stopping @ ./02.prepare-subject.sh phpdirectamccommandline"
With Php nothing executed.
With terminal= command succesfull.

=========================================================
Another attempt:
<PHPCODE>

<?php
// Get current directory
echo getcwd() . "&lt;br&gt;";

// Change directory
chdir("../");

// Get current directory
echo getcwd();
echo "</br>";
//$output = exec("bash ./new-project.sh phpdirectamccommandline");
chdir("phpdirectamccommandline");

$output2 = shell_exec("auto-multiple-choice prepare --mode s --prefix ./ ./source.tex \
--out-sujet DOC-subject.pdf \
--out-corrige DOC-correction.pdf \
--data ./data \
--out-calage DOC-calage.xy");

echo $output2;
echo getcwd();

?>

</PHPCODE>

RESULT= stopping @ ./02.prepare-subject.sh phpdirectamccommandline"
With Php nothing executed.
With terminal= command succesfull.

conclusion : i checked everything. www-data/whoami/sudoers/chown root/
Can some contributor help with steps to do. thanks everyone.