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Top Forums Programming opendir() + customly created directories Post 302179078 by shamrock on Thursday 27th of March 2008 12:55:49 AM
Old 03-27-2008
opendir() returns a pointer to a dir stream. readdir() is invoked in a loop afterwards to read the contents of the opened dir stream. Each dir entry is passed from readdir() to stat() which stores information in a stat structure. The S_ISDIR() macro can be used to test whether the stat structure is a dir or not. Look at the manpages of opendir() readdir() and stat().
 

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OPENDIR(3)								 1								OPENDIR(3)

opendir - Open directory handle

SYNOPSIS
resource opendir (string $path, [resource $context]) DESCRIPTION
Opens up a directory handle to be used in subsequent closedir(3), readdir(3), and rewinddir(3) calls. PARAMETERS
o $path - The directory path that is to be opened o $context - For a description of the $context parameter, refer to the streams section of the manual. RETURN VALUES
Returns a directory handle resource on success, or FALSE on failure. If $path is not a valid directory or the directory can not be opened due to permission restrictions or filesystem errors, opendir(3) returns FALSE and generates a PHP error of level E_WARNING. You can suppress the error output of opendir(3) by prepending '@' to the front of the function name. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.0.0 | | | | | | | $path supports the ftp:// URL wrapper. | | | | | 4.3.0 | | | | | | | $path can also be any URL which supports direc- | | | tory listing, however only the file:// URL wrap- | | | per supports this in PHP 4 | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 opendir(3) example <?php $dir = "/etc/php5/"; // Open a known directory, and proceed to read its contents if (is_dir($dir)) { if ($dh = opendir($dir)) { while (($file = readdir($dh)) !== false) { echo "filename: $file : filetype: " . filetype($dir . $file) . " "; } closedir($dh); } } ?> The above example will output something similar to: filename: . : filetype: dir filename: .. : filetype: dir filename: apache : filetype: dir filename: cgi : filetype: dir filename: cli : filetype: dir SEE ALSO
is_dir(3), readdir(3), dir(3). PHP Documentation Group OPENDIR(3)
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