read the latest updated csv file from the folder with php

Question

Just wandering, will it be possible to make the system always read the latest updated csv file with php??

Exmaple: I have a folder \'Report\'; user will put in the new c

Answer 1

You can use the filemtime() function in php. Here is the manual page:

http://php.net/manual/en/function.filemtime.php

You just need to get a list of a all files in the directory.

Answer 2

This should fine the file with the "highest" modification time (meaning the last modified file). You can use filemtime for this.

$dir = "dir/to/check/";
$dh = opendir($dir);
$last = 0;
$name = "";
while (($file = readdir($dh)) !== false){
    if(is_file($dir.$file)){
        $mt = filemtime($dir.$file);
        if($mt > $last){
            $last = $mt;
            $name = $file;
        }
    }
}
closedir($dh);

echo "Last modified file: $name";