PHP scandir () function excludes specific directory sample usage

Scandir () returns an array of files and directories in the specified directory. returns an array of files and directories if successful. The failure returns FALSE. If directory is not a directory, the e_warning level error is thrown.

Grammar

Scandir (Directory,sorting_order,context);

Parameters	Description
Directory	Necessary. Specifies the directory to scan.
Sorting_order	Optional. Specify the order of arrangement. The default is 0, which indicates ascending alphabetical order. If set to Scandir_sort_descending or 1, the letters are sorted in descending order. If set to Scandir_sort_none, the result is not aligned.
Context	Optional. The environment that specifies the directory handle. context is a set of options that modify the behavior of a directory stream.

Example: The code is as follows:

<?phpprint_r (Scandir (' test_directory '));? >

The output is as follows:

Array ([0]=>.[ 1]=>, .... [2]=>1.txt[3]=>2.txt]

In most cases, you only need an array of file lists for that directory, as follows:

Array ([0]=>1.txt[1]=>2.txt)

Generally by excluding "." or ".." An array of items to resolve: The code is as follows:

<?phpfunctionfind_all_files ($dir) {    $root = Scandir ($dir);    foreach ($rootas $value)    {        if ($value = = = ". ' | | $value = = = ' ... ') {            continue;        }        if (Is_file ("$dir/$value")) {            $result [] = "$dir/$value";            Continue;        }        foreach (Find_all_files ("$dir/$value") as$value)        {            $result [] = $value;            }        }    Return$result;    }? >

Another method, using the Array_diff function, is to reject the array that the Scandir function performs: The code is as follows:

<?php$directory= '/path/to/my/directory '; $scanned _directory=array_diff (Scandir ($directory), Array ('.. ', '. ')); >

Typically, code management generates an. svn file, or a. htaccess file that restricts directory access. Therefore, it is more convenient to filter by Array_diff function.