In the provided code snippet, where and how can a sort function be implemented to display the directory contents alphabetically?

To display the directory contents alphabetically, a sort function can be implemented to sort the array of files before displaying them. This can be achieved by using the `sort()` function in PHP, which will sort the elements of an array in ascending order. By sorting the array of files before looping through them to display, the directory contents will be displayed alphabetically. 

$dir = "path/to/directory";

// Open a directory, and read its contents
if (is_dir($dir)){
  if ($dh = opendir($dir)){
    $files = array();
    while (($file = readdir($dh)) !== false){
      if($file != "." && $file != ".."){
        $files[] = $file;
      }
    }
    closedir($dh);
    
    // Sort the array alphabetically
    sort($files);
    
    // Display the sorted directory contents
    foreach($files as $file){
      echo $file . "<br>";
    }
  }
}

Keywords

PHP sort function directory contents alphabetically implementation

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