How can developers ensure proper path handling when working with filesystem functions in PHP to avoid issues like not getting the full path from readdir()?

Developers can ensure proper path handling by using the `realpath()` function to get the full path from `readdir()`. This function resolves any symbolic links and references to the actual path, providing the accurate full path. 

$dir = '/path/to/directory';
$handle = opendir($dir);

while (false !== ($file = readdir($handle))) {
    $fullPath = realpath($dir . '/' . $file);
    echo $fullPath . PHP_EOL;
}

closedir($handle);

Keywords

PHP filesystem functions path handling readdir() full path

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