immagini jpg, gif png

[seokey]

Salve a tutti,

ho questa situazione dalla quale non riesco ad uscire...

Il seguente script funziona perfettamente per il resize delle immagini jpg ma, volendo gestire anche immagini con estensione gif e png, ho provato a gestire la problematica con switch... senza raggiungere alcun risultato... qualcuno ha qualche suggerimento ? Posto qui perché sono ormai diversi giorni che non riesco a venirne a capo...

<?php
function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth ) 
{
//$estensioni = array('jpg','jpeg','gif','GIF','JPG','JPEG');
  // open the directory
  $dir = @opendir( $pathToImages );

  // loop through it, looking for any/all JPG files:
  while (false !== ($fname = @readdir( $dir ))) {
    // parse path for the extension
    $info = pathinfo($pathToImages . $fname);
    $fname = str_replace(" ", "", $fname);
    $fname = str_replace("%20", "", $fname);
    
    // continue only if this is a JPEG image
  //  if ( strtolower($info['extension']) == 'jpg' || 'GIF' || 'gif' || 'JPEG') 
   //{
     // echo "Ho creato miniatura per immagine: {$fname} 
";

switch($type)
    {
        case 1: $img = @imagecreatefromjpeg( "{$pathToImages}{$fname}" ); break;
        case 2: $img = @imagecreatefrompng( "{$pathToImages}{$fname}" ); break;
        case 3: $img = @imagecreatefromgif( "{$pathToImages}{$fname}" ); break;
    }


      // load image and get image size
     // $img = @imagecreatefromjpeg( "{$pathToImages}{$fname}" );
      $width = @imagesx( $img );
      $height = @imagesy( $img );

      // calculate thumbnail size
      $new_width = $thumbWidth;
      $new_height = @floor( $height * ( $thumbWidth / $width ) );

      // create a new temporary image
      $tmp_img = @imagecreatetruecolor( $new_width, $new_height );

      // copy and resize old image into new image 
      @imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );

      // save thumbnail into a file
      switch($type2)
    {
        case 1:  @imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" ); break;
        case 2:  @imagepng( $tmp_img, "{$pathToThumbs}{$fname}" ); break;
        case 3:  @imagegif( $tmp_img, "{$pathToThumbs}{$fname}" ); break;
    }
      
     //@imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" );

//    }
  }
  // close the directory
  @closedir( $dir );
}
// call createThumb function and pass to it as parameters the path 
// to the directory that contains images, the path to the directory
// in which thumbnails will be placed and the thumbnail's width. 
// We are assuming that the path will be a relative path working 
// both in the filesystem, and through the web for links
createThumbs("img/","thumbs/",100);
?>

ah... dimenticavo... grazie

[seokey]

Ho modificato lo script così:

<?php
function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth ) 
{
//$estensioni = array('jpg','jpeg','gif','GIF','JPG','JPEG');
  // open the directory
  $dir = @opendir( $pathToImages );

  // loop through it, looking for any/all JPG files:
  while (false !== ($fname = @readdir( $dir ))) {
    // parse path for the extension
    $info = pathinfo($pathToImages . $fname);
    $fname = str_replace(" ", "", $fname);
    $fname = str_replace("%20", "", $fname);
    
    // continue only if this is a JPEG image
  //  if ( strtolower($info['extension']) == 'jpg' || 'GIF' || 'gif' || 'JPEG') 
   //{
     // echo "Ho creato miniatura per immagine: {$fname} 
";



$nome_file = $fname;
 

$ext = strtolower(substr($nome_file, strrpos($nome_file, "."), strlen($nome_file)-strrpos($nome_file, ".")));
$ext = str_replace(".","",$ext);

return $ext;


switch($ext)
    {
        case 'jpeg': $img = @imagecreatefromjpeg( "{$pathToImages}{$fname}" ); break;
        case 'png': $img = @imagecreatefrompng( "{$pathToImages}{$fname}" ); break;
        case 'gif': $img = @imagecreatefromgif( "{$pathToImages}{$fname}" ); break;
    }


      // load image and get image size
     // $img = @imagecreatefromjpeg( "{$pathToImages}{$fname}" );
      $width = @imagesx( $img );
      $height = @imagesy( $img );

      // calculate thumbnail size
      $new_width = $thumbWidth;
      $new_height = @floor( $height * ( $thumbWidth / $width ) );

      // create a new temporary image
      $tmp_img = @imagecreatetruecolor( $new_width, $new_height );

      // copy and resize old image into new image 
      @imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );

      // save thumbnail into a file
      switch($tmp_img)
    {
        case 'jpeg':  @imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" ); break;
        case 'png':  @imagepng( $tmp_img, "{$pathToThumbs}{$fname}" ); break;
        case 'gif':  @imagegif( $tmp_img, "{$pathToThumbs}{$fname}" ); break;
    }
      
     //@imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" );

//    }
  }
  // close the directory
  @closedir( $dir );
}
// call createThumb function and pass to it as parameters the path 
// to the directory that contains images, the path to the directory
// in which thumbnails will be placed and the thumbnail's width. 
// We are assuming that the path will be a relative path working 
// both in the filesystem, and through the web for links
createThumbs("img/","thumbs/",100);
?>

ma non vengono caricate nemmeno le jpg !

[seokey]

Salve a tutti,

ho poi risolto il problema presentato. Ecco la soluzione: (ho utilizzato degli IF) cercherò poi di utilizzare uno SWITCH più elegante.

<?php
function createThumbs( $pathToImages, $pathToThumbs, $thumbWidth ) 
{
//$estensioni = array('jpg','jpeg','gif','GIF','JPG','JPEG');
  // open the directory
  $dir = @opendir( $pathToImages );

  // loop through it, looking for any/all JPG files:
  while (false !== ($fname = @readdir( $dir ))) {
    // parse path for the extension
    $info = pathinfo($pathToImages . $fname);
    $fname = str_replace(" ", "", $fname);
    $fname = str_replace("%20", "", $fname);
    
    

$ext = strtolower(substr($fname, strrpos($fname, "."), strlen($fname)-strrpos($fname, ".")));
$ext = str_replace(".","",$ext);



/*
switch($ext)
    {
        case 'jpeg': case'jpg': $img = @imagecreatefromjpeg( "{$pathToImages}{$fname}" ); break;
        case 'png': $img = @imagecreatefrompng( "{$pathToImages}{$fname}" ); break;
        case 'gif': $img = @imagecreatefromgif( "{$pathToImages}{$fname}" ); break;
    }


      // load image and get image size gestisce jpeg gif e png
         */  
        if (($ext == 'jpg') || ($ext == 'jpeg') || ($ext == 'JPG') || ($ext == 'JPEG'))  {
          $img = @imagecreatefromjpeg( "{$pathToImages}{$fname}" );
      $width = @imagesx( $img );
      $height = @imagesy( $img );
}


        if (($ext == 'gif') || ($ext == 'GIF'))  {
          $img = @imagecreatefromgif( "{$pathToImages}{$fname}" );
      $width = @imagesx( $img );
      $height = @imagesy( $img );
}

        if (($ext == 'x-png') || ($ext == 'png') || ($ext == 'PNG'))  {
          $img = @imagecreatefrompng( "{$pathToImages}{$fname}" );
      $width = @imagesx( $img );
      $height = @imagesy( $img );
}




      // calculate thumbnail size
      $new_width = $thumbWidth;
      $new_height = @floor( $height * ( $thumbWidth / $width ) );

      // create a new temporary image
      $tmp_img = @imagecreatetruecolor( $new_width, $new_height );

      // copy and resize old image into new image 
      @imagecopyresized( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );

       
   
    if (($ext == 'jpg') || ($ext == 'jpeg') || ($ext == 'JPG') || ($ext == 'JPEG'))  {
   @imagejpeg( $tmp_img, "{$pathToThumbs}{$fname}" );
}

if (($ext == 'gif') || ($ext == 'GIF'))  {
@imagegif( $tmp_img, "{$pathToThumbs}{$fname}" );

}

if (($ext == 'x-png') || ($ext == 'png') || ($ext == 'PNG'))  {
@imagepng( $tmp_img, "{$pathToThumbs}{$fname}" );

}

//    }
  }
  // close the directory
  @closedir( $dir );
}
// call createThumb function and pass to it as parameters the path 
// to the directory that contains images, the path to the directory
// in which thumbnails will be placed and the thumbnail's width. 
// We are assuming that the path will be a relative path working 
// both in the filesystem, and through the web for links
createThumbs("img/","thumbs/",100);
?>