Basic Array Notes

fields[] = $f;  //pushes $f into array $fields
$o = fields[0]; //assigns fields[0] to $o


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$fileNames = scandir( " something goes here" );
$textfiles = array();

foreach ($fileNames as $filename)
{
// loop through and save textfile
//(.txt) names into another array
 if(substr($filename, -4) == ".txt") 
 {
  $textfiles[] = $filename;
 } 
}

// see if we have no textfiles
if (count($textfiles) <= 0)
{
 // do whatever if you have none
 die();
}

// print them out
foreach ($textfiles as $textfile)
{
// print them
echo $textfile;
}