I have to make a function that lists all subfolders into a folder. I have a no-file filter, but the function uses scandir() for listing. That makes the application very slow. Is there an alternative of scandir(), even a not native php function? Thanks in advance!
You can use readdir which may be faster, something like this:
function readDirectory($Directory,$Recursive = true)
{
if(is_dir($Directory) === false)
{
return false;
}
try
{
$Resource = opendir($Directory);
$Found = array();
while(false !== ($Item = readdir($Resource)))
{
if($Item == "." || $Item == "..")
{
continue;
}
if($Recursive === true && is_dir($Item))
{
$Found[] = readDirectory($Directory . $Item);
}else
{
$Found[] = $Directory . $Item;
}
}
}catch(Exception $e)
{
return false;
}
return $Found;
}
May require some tweeking but this is essentially what scandir does, and it should be faster, if not please write an update as i would like to see if i can make a faster solution.
Another issue is if your reading a very large directory your filling an array up within the internal memory and that may be where your memory is going.
You could try and create a function that reads in offsets so that you can return 50 files at a time!
reading chunks of files at a time would be just as simple to use, would be like so:
$offset = 0;
while(false !== ($Batch = ReadFilesByOffset("/tmp",$offset)))
{
//Use $batch here which contains 50 or less files!
//Increment the offset:
$offset += 50;
}