(PHP 4, PHP 5, PHP 7)
opendir — Open directory handle
opendir ( string $path [, resource $context ] ) : resource|false
Opens up a directory handle to be used in subsequent closedir(), readdir(), and rewinddir() calls.
path
The directory path that is to be opened
context
For a description of the context parameter, refer to the streams section of the manual.
Returns a directory handle resource on success, or false on failure
Upon failure, an E_WARNING is emitted.
This may happen if path is not a valid directory, the directory can not be opened due to permission restrictions, or due to filesystem errors.
Example #1 opendir() 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 . $file) . "\n";
}
closedir($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
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https://www.php.net/manual/en/function.opendir.php