$form = new emarking_printexam_form(null, array('examid' => $exam->id));
if ($form->is_cancelled()) {
    $continue_url = new moodle_url('/mod/emarking/printorders.php', array('category' => $course->category));
    redirect($continue_url);
}
echo $OUTPUT->header();
echo $OUTPUT->heading(get_string('printexam', 'mod_emarking'));
$result = exec('lpstat -p -d');
$parts = explode(":", $result);
if (count($parts) != 2) {
    print_error('Invalid printer setup. You must install cups and set a default printer for eMarking to be able to print.');
} else {
    $printer = strtoupper(trim($parts[1]));
    echo $OUTPUT->box('Default printer: ' . $printer);
}
if ($form->get_data()) {
    $printer = $printers[$form->get_data()->printername];
    if ($printer == "Edificio-A-CentralDeApuntes") {
        $target = "10.50.2.124";
    }
    if ($printer == "Edificio-C-mesonSecretaria") {
        $target = "10.60.2.8";
    }
    if ($printer == "secretaria-edificio-D") {
        $target = "10.110.2.244";
    }
    // codigo extra borrar
    $cmd_result = shell_exec("ping -c 1 -w 1 " . $target);
    $result = explode(",", $cmd_result);
    if (eregi("0 received", $result[1])) {
        $estado = "Fatal error trying to print, printer is off line";
Exemple #2
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echo $OUTPUT->heading(get_string('printexam', 'mod_emarking'));
// Default printer
$result = exec('lpstat -p -d');
$parts = explode(":", $result);
if (!$debugprinting) {
    if (count($parts) != 2) {
        echo $OUTPUT->notification('Invalid printer setup. 
				You must install cups and set a default printer for eMarking to be able to print.', 'notifyproblem');
        echo $OUTPUT->footer();
        die;
    } else {
        $printer = strtoupper(trim($parts[1]));
        echo $OUTPUT->box('Default printer: ' . $printer);
    }
}
if ($data = $form->get_data()) {
    $idprinter = $data->printername;
    $sqlprinter = "SELECT id, ip\n\t\t\tFROM {emarking_printers}\n\t\t\tWHERE id = ?";
    $printerinfo = $DB->get_record_sql($sqlprinter, array($idprinter));
    $idprinter = $printerinfo->id;
    $target = $printerinfo->ip;
    $pbar = new progress_bar('printing', 500, true);
    if ($exam->printrandom == 1) {
        $rs = emarking_get_groups_for_printing($course->id);
        foreach ($rs as $r) {
            $rsg = emarking_download_exam($exam->id, true, $r->id, $pbar, true, $idprinter);
            if (!$rsg) {
                // Send directly to printer
                print_error('Fatal error trying to print');
            }
            $archive_folder = $rsg;