Get the function result from a class - php

Question

I have a function inside a class, and I would like to get the result of this function, something like:
Returned dangerous functions are: dl, system
Here is my code
public final function filterFile(){
$disabled_functions = ini_get('disable_functions');
$disFunctionsNoSpace = str_replace(' ', '', $disabled_functions);
$disFunctions = explode(',', $disFunctionsNoSpace);
$this->disFunctions = $disFunctions;
// get file content of the uploaded file (renamed NOT the temporary)
$cFile = file_get_contents($this->fileDestination, FILE_USE_INCLUDE_PATH);
$found = array();
foreach($this->disFunctions as $kkeys => $vvals)
{
if(preg_match('#'.$vvals.'#i', $cFile))
{
array_push($found, $vvals);
}
} // end foreach
} // end filterFile
// calling the class
$up = new uploadFiles($filename);
$fileterringFile = $up->filterFile();
print_r($fileterringFile);
var_dump($fileterringFile);
EDIT: add 2 functions for errors:
// check if any uErrors
public final function checkErrors(){
$countuErrors = count($this->uErrors);
if((IsSet($this->uErrors) && (is_array($this->uErrors) && ($countuErrors > 0))))
{
return true;
}
return false;
} // end checkErrors()
// print user errors
public final function printErrors(){
$countuErrors = count($this->uErrors);
if((IsSet($this->uErrors) && (is_array($this->uErrors) && ($countuErrors > 0))))
{
echo '<ul>';
foreach($this->uErrors as $uV)
{
echo '<li>';
echo $uV;
echo '</li>';
}
echo '</ul>';
}
} // end printErrors()
Thanks in advance

Answer 1

at the end of end filterFile, add:
return 'Returned dangerous functions are: '.implode(',',$found);