Directory Display.

[Jeffreyv1987]

Alright ive got a code to display my directory which has 20 files in.
Is there a way to only display 5 of the files or maybe display 5 random files..

<?php
 $directory = "./files";
 //Directory is set;
 
 $dir = opendir($directory);
 //Opened the directory;

     while($file = readdir($dir)){

     //Loops through all the files/directories in our directory;
    if($file!="." && $file != ".." ){
         
      echo '<A href=" ' . $file .' "> ' . $file .' </a> </br>';
  
       }
   }
?>

This is the script ive got so far. im having trouble..

[JShor]

You can put the files into an array, then randomize it. Then, use array_slice() to limit the results.

<?php
 $directory = "./files";
 $arr = array();
 //Directory is set;
 
 $dir = opendir($directory);
 //Opened the directory;

     while($file = readdir($dir)){

     //Loops through all the files/directories in our directory;
    if($file!="." && $file != ".." ){
         
      array_push($arr, $file);
  
       }
   }

  shuffle($arr);

  $args = array_slice($arr, 0, 5);

  foreach($args as $a) {

   echo '<A href=" ' . $a .' "> ' . $a .' </a></br>';
   

  }
?>

HTH

[JasonDFR]

function isDot($file) {
    if ($file == '.' || $file == '..') {
        return true;
    }
    return false;
}

function randomFiles($path, $numberToReturn = null) {
    if (!is_dir($path)) {
        return false;
    }
    $dir = opendir($path);
    $files = array();
    while($file = readdir($dir)) {
        if(!isDot($file)) {
            $files[] = $file;
        }
    }
    shuffle($files);
    if ($numberToReturn != null) {
        $files = array_slice($files, 0, $numberToReturn);
    }
    return $files;
} 

Test:

var_dump(randomFiles(dirname(__FILE__), 5)); 

[JasonDFR]

Must have been working on these while the first reply was made.

OOP way. Just because it was fun to do.

class FileRandomizer {
    
    protected $_dirPath = '';
    protected $_numberToReturn = null;
    
    public function __construct($dirPath, $numberToReturn = null)
    {
        if (!is_dir($dirPath)) {
            throw new Exception('Path is not valid');
        }
        if ($numberToReturn !== null && is_int($numberToReturn)) {
            $this->_numberToReturn = $numberToReturn;
        }
        
        $this->_dirPath = $dirPath;
    }
    
    public function getRandomFiles()
    {
        $filesArray = $this->_getFilesArray();
        $randFilesArray = $this->_randomize($filesArray);
        if ($this->_numberToReturn != null) {
            $randFilesArray = array_slice($randFilesArray, 0, $this->_numberToReturn);
        }
        return $randFilesArray;
    }
    
    public function setNumberToReturn($numberToReturn)
    {
        if (!is_int($numberToReturn)) {
            throw new Exception('Number to return must be an integer');
        }
        
        $this->_numberToReturn = $numberToReturn;
    }
    
    protected function _getFilesArray()
    {
        $dir = opendir($this->_dirPath);
        $files = array();
        while($file = readdir($dir)) {
            if(!$this->_isDot($file)) {
                $files[] = $file;
            }
        }
        
        return $files;
    }
    
    protected function _randomize($files)
    {
        shuffle($files);
        return $files;
    }
    
    protected function _isDot($file)
        {
        if ($file == '.' || $file == '..') {
            return true;
        }
        return false;
    }
    
} 

Use:

$fileRandomizer = new FileRandomizer(dirname(__FILE__));
$fileRandomizer->setNumberToReturn(5);
var_dump($fileRandomizer->getRandomFiles()); 

[techietim]

<?php
$directory = './files/'; //include trailing slash

$files = glob($directory . '*');
$files = array_filter($files, 'is_file');

echo '<ul>';
foreach(array_rand($files, 5) as $key)
{
    echo '<li><a href="' . $files[$key] . '">' . basename($files[$key]) . '</a></li>';
}
echo '</ul>';

[JasonDFR]

<?php
$directory = './files/'; //include trailing slash

$files = glob($directory . '*');
$files = array_filter($files, 'is_file');

echo '<ul>';
foreach(array_rand($files, 5) as $key)
{
    echo '<li><a href="' . $files[$key] . '">' . basename($files[$key]) . '</a></li>';
}
echo '</ul>';

nice...

[JShor]

<?php
$directory = './files/'; //include trailing slash

$files = glob($directory . '*');
$files = array_filter($files, 'is_file');

echo '<ul>';
foreach(array_rand($files, 5) as $key)
{
    echo '<li><a href="' . $files[$key] . '">' . basename($files[$key]) . '</a></li>';
}
echo '</ul>';

and look at me, doing things the overcomplicated way :P

[Jeffreyv1987]

Thanks again guys i got it working.