Files and Directories

File Grabber with Random Photo Display

Type:	class
Added by:	bicycle
Entered:	26/08/2003
Last modified:	09/12/2002
Rating:	- (fewer than 3 votes)
Views:	5601

Looks in any directory you specify and gets all the files with extensions given by you. Returns them as an array that you can do anything with, I used it to pick four photos from the photo album directory at random (sort of random) and display them in the footer of a page. Works around open_basedir restrictions.

<?

                            
 class filelist {

                            

                            var $files;

                            
 // the class uses extensions like ("jpg","gif","png")

                            // the function prepends the document root, so 

                            // give directory information like "/images/album"

                            
 function GetList($directory,$ext = FALSE) {

                                $files = array(); 

                                $handle = opendir($_SERVER ['DOCUMENT_ROOT'].$directory);

                                while(false !== ($file = readdir($handle))) {

                                    //GET THE FILES ACCORDING TO THE EXTENSIONS ON THE ARRAY 

                                    for ($i = 0; $i < count($ext); $i++) {

                                        if (eregi(".". $ext[$i] ."$", $file)) {

                                            $files[] = $file; 

                                        }

                                    }

                                }
 closedir($handle); 

                            
 $this->files = $files;

                            

                            }

                            

                            

                            function WriteList($dir,$ext = FALSE) {

                                $this -> GetList($dir,$ext);

                                foreach ($this->files as $element) { 

                                    echo "$elementn"; 

                                }

                            }

                            

                            function WriteImages($dir,$ext = FALSE) {

                                $this -> GetList($dir,$ext);

                                

                                shuffle($this->files);

                                    

                                for ($i = 0; $i < 4; $i++) {

                                    $element = $this->files[$i];

                                    echo "<td><img src="$dir/$element" alt="Photo Album" height=147 border=0></td>n";

                                }

                            }

                            

                            

                            

                            

                            }
 ?>

Usage Example

if (file_exists($_SERVER ['DOCUMENT_ROOT']."/global/classes/getfilelist.php")) {

                                    require_once($_SERVER ['DOCUMENT_ROOT'].'/global/classes/getfilelist.php');

                                    $exts = array("jpg","gif");

                                    $photo_dir = "/images/photoalbum/";

                                    $list = new filelist();

                                    $list->WriteImages($photo_dir,$exts);

                                }

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