Need some help getting all images in folder into an array

[Darkapple]

Hi all,

Wondered if anyone could help me please.

I am looking for the php to put all the images in a folder into an array, there are other files in the folder but just need a script to get the jpegs.

Any help would be great

Thanks



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[AnthonySterling]

Here's an example of how to do that.

<?php
class FileExtensionFilter extends FilterIterator
{
  protected
    $extensions = array();
    
  public function __construct($iterator, array $extensions){
    parent::__construct($iterator);
    $this->extensions = $extensions;
  }
  
  public function accept(){
    return in_array(
      pathinfo(parent::current(), PATHINFO_EXTENSION),
      $this->extensions
    );
  }
}

$iterator = new DirectoryIterator('path\\to\\directory');

foreach(new FileExtensionFilter($iterator, array('jpg', 'jpeg')) as $jpg){
  echo $jpg->getFilename(), PHP_EOL;
}

[Darkapple]

Hi,

Thanks for the reply, I'm newish to php just wondered what string holds the array

Thanks



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[AnthonySterling]

There isn't one.

In this example though, $images holds the files it found.

<?php
class FileExtensionFilter extends FilterIterator
{
  protected
    $extensions = array();
    
  public function __construct($iterator, array $extensions){
    parent::__construct($iterator);
    $this->extensions = $extensions;
  }
  
  public function accept(){
    return in_array(
      pathinfo(parent::current(), PATHINFO_EXTENSION),
      $this->extensions
    );
  }
}

$iterator = new DirectoryIterator('path\\to\\directory');
$images   = iterator_to_array(new FileExtensionFilter($iterator, array('jpg', 'jpeg')));

[Darkapple]

Hi Mate,

Thanks for that, I have now linked your script to a bit of code that will take the Array and create a zip file for downloading, but again i have run into problems it creates a zip file but you cant open the zip file, and when i check it was an error message not a zip.

Please find my code bellow

<?php
class FileExtensionFilter extends FilterIterator
{
  protected
    $extensions = array();
    
  public function __construct($iterator, array $extensions){
    parent::__construct($iterator);
    $this->extensions = $extensions;
  }
  
  public function accept(){
    return in_array(
      pathinfo(parent::current(), PATHINFO_EXTENSION),
      $this->extensions
    );
  }
}

$iterator = new DirectoryIterator('NewGallery/photos');
$file_names = iterator_to_array(new FileExtensionFilter($iterator, array('jpg', 'jpeg')));

//function to zip and force download the files using PHP
function zipFilesAndDownload($file_names,$archive_file_name,$file_path)
{
  //create the object
  $zip = new ZipArchive();
  //create the file and throw the error if unsuccessful
  if ($zip->open($archive_file_name, ZIPARCHIVE::CREATE )!==TRUE) {
    exit("cannot open <$archive_file_name>\n");
  }
  //add each files of $file_name array to archive
  foreach($file_names as $files)
  {
    $zip->addFile($file_path.$files,$files);
  }
  $zip->close();
  //then send the headers to foce download the zip file
  header("Content-type: application/zip");
  header("Content-Disposition: attachment; filename=$archive_file_name");
  header("Pragma: no-cache");
  header("Expires: 0");
  readfile("$archive_file_name");
  exit;
}

  # $file_names=$filesa;
  $archive_file_name='zipped.zip';
  $file_path=dirname(__FILE__).'/';
  zipFilesAndDownload($file_names,$archive_file_name,$file_path);
  echo $file_names;

?>

any help would be great

[Darkapple]

Sorry it's me being a div I didn't put the path of the files in it


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[Darkapple]

Nope still doesn't work


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[AnthonySterling]

Include the filesize of $archive_file_name in the headers and do not echo out the $file_names variable.

[Darkapple]

Hi,

By file size what do you mean, as the folder gets further photos added and wouldn't know the full file size.

Sorry to be thick


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[AnthonySterling]

... but you can get the filesize of the zip file you've just created, right?

[Darkapple]

I have found a proble with my code, the array is empty, so I have tried a different bit of code and still if i printR my array just comes up Array ( )

this is my new code

function stf_get_files( $directory, $filter = array( "*" ) ){
    $results = array(); // Result array
    $filter = (array) $filter; // Cast to array if string given
 
    // Open directory
    $handler = opendir( $directory );
 
    // Loop through files
    while ( $file = readdir($handler) ) {
 
        // Jump over directories.
        if( is_dir( $file ) )
            continue;
 
        // Prepare file extension
        $extension = end( explode( ".", $file ) ); // Eg. "jpg"
 
        // If extension fits add it to array
        if ( $file != "." && $file != ".." && ( in_array( $extension, $filter ) || in_array( "*", $filter ) ) ) {
            $results[] = $file;
        }
    }
 
    // Close handler
    closedir($handler);
 
    // Return
    return $results;
}
$dir = "NewGallery/photos";
$smeg = stf_get_files($dir, array( "php", "gif"));
print_r($smeg);

Any help would be great

[Darkapple]

I have got the script working sort of, I have check all the way through it now populates the array with jpg only , it creates a zip file and also starts the download, my problem now it that when you open the zip file there is only 1 photo in it but in the directory (and array) there are 27.

this is doing my head in now any help would be great, please see my code bellow

<?php

function zip_files($files_to_add = array(), $save_to = '', $overwrite_existing = true)
{
	//if the file already exists and overwrite is
	//set to false then return false and get out
	if(file_exists($save_to) && !$overwrite_existing)
	{
		return false;
	}
	
	//now on to the action
	$files = array();
	
	//check for an array
	if(is_array($files_to_add))
	{
		//loop through each file in the array
		foreach($files_to_add as $valid_file)
		{
			//if the file exists then add to the file array
			if(file_exists($valid_file))
			{
				$files[] = $valid_file;
			}
			
			//check the count of files
			if(count($files))
			{
				//create a new zip archive object
				$zip_archive = new ZipArchive();
				
				//open zip archive for modifying and check for a value
				//of true with the modes specified
				if($zip_archive->open($save_to, $overwrite_existing ? ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE) != true)
				{
					return false;
				}
				
				//loop through the file array
				//adding each file to the new zip archive
				foreach($files as $file)
				{
					$zip_archive->addFile($file, $valid_file);
				}
				
				//close the zip archive
				$zip_archive->close();
				
				//finally make sure the new zip file exists
				return((file_exists($save_to)) ? true : false);
			}
		}
	}
}



function stf_get_files( $directory, $filter = array( "*" ) ){
    $results = array(); // Result array
    $filter = (array) $filter; // Cast to array if string given
 
    // Open directory
    $handler = opendir( $directory );
 
    // Loop through files
    while ( $file = readdir($handler) ) {
 
        // Jump over directories.
        if( is_dir( $file ) )
            continue;
 
        // Prepare file extension
        $extension = end( explode( ".", $file ) ); // Eg. "jpg"
 
        // If extension fits add it to array
        if ( $file != "." && $file != ".." && ( in_array( $extension, $filter ) || in_array( "*", $filter ) ) ) {
            $results[] = $file;
        }
    }
 
    // Close handler
    closedir($handler);
 
    // Return
    return $results;
}


$dir = ".";
$my_files = stf_get_files($dir, array( "JPG", "php", "GIF"));


$zip = zip_files($my_files,'ThePhotos.zip');

if(!$zip)
{
    echo('There was a problem creating the zip file');
}
else
{
     //BUILD THE FILE INFORMATION
     
     $file = "ThePhotos.zip";
 
     //CREATE/OUTPUT THE HEADER
     header("Content-type: application/force-download");
     header("Content-Transfer-Encoding: Binary");
     header("Content-length: ".filesize($file));
     header("Content-disposition: attachment; filename=\"".basename($file)."\"");
     readfile($file);
}
?>

[Rubble]

Why not just use glob?

// Directory to read images from
$dir = "./";

// Read the directory and select jpg only
$filenames = glob("$dir*.{jpg,JPG,jpeg,JPEG}", GLOB_BRACE); 

The array is in $filenames and only .jpg files are selected - allowing for lower and uppercase. May need to modify the filename for your use - echo them out to view what it is as the path is included in the filename.

[Darkapple]

Thanks mate will give it a go


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[Darkapple]

Hi Guys,

thanks for all your help, I have finaly got it sorted and it works perfect, thought I would post the code just incase anyone else needs it

<?php

//function to zip and force download the files using PHP
function zipFilesAndDownload($file_names,$archive_file_name,$file_path)
{
  //create the object
  $zip = new ZipArchive();
  //create the file and throw the error if unsuccessful
  if ($zip->open($archive_file_name, ZIPARCHIVE::CREATE )!==TRUE) {
    exit("cannot open <$archive_file_name>\n");
  }
  //add each files of $file_name array to archive
  foreach($file_names as $files)
  {
    $zip->addFile($file_path.$files,$files);
  }
  $zip->close();
  //then send the headers to foce download the zip file
  header("Content-type: application/zip");
  header("Content-Disposition: attachment; filename=$archive_file_name");
  header("Pragma: no-cache");
  header("Expires: 0");
  readfile("$archive_file_name");
  exit;
}

// Directory to read files from

$dir = ""; // blank = directory script is in

// Read the directory and select jpg only

$filenames_to_download = glob("$dir*.{jpg,JPG,jpeg,JPEG}", GLOB_BRACE); 

// The Zip Funtion 

  $archive_file_name='zipped.zip';
  $file_path=dirname(__FILE__).'/';
  zipFilesAndDownload($filenames_to_download,$archive_file_name,$file_path);

?>