Question

Hi I based this function from the one I’ve found on web and tried modifying it up for my PHP page for uploading of their icons but I want to limit the user from uploading an image which should only size 100x100px. Well I just call it using this:

uploadImage($id,$_FILES['upload']['name'],$_FILES['upload']['tmp_name']);

This is the function I made:

 function uploadImage($new_name,$imagename,$tmp_name){

 if($tmp_name!=null||$tmp_name!=""){
     list($width, $height, $type, $attr) = getimagesize($tmp_name);
         if($width==100&&$height==100){
          $image1 = $imagename;

          $extension = substr($image1, strrpos($image1, '.') + 1);
          $image = "$new_name.$extension";
          $folder = "Images/"; 
                  if($image) { 
                    $filename = $folder.$image; 

                    $copied =  copy($tmp_name, $filename); 
                  }
                  else echo "image not uploaded.";
          }
          else
            echo "upload only 100x100px image!"; 
    }

}

Now the problem is that even if I uploaded an image which exceeds the 100 x 100px dimensions it still proceeds without returning any errors and now I’m lost with it.

Answer 1

well, you can also resize the image after upload.

function createFixSizeImage( $pathToImages, $pathToFixSizeImages, $Width ) 
{

  // open the directory
  $dir = opendir( $pathToImages );

  // loop through it, looking for any/all JPG files:
  while (false !== ($fname = readdir( $dir ))) {


  $image_info   = getimagesize( "path/to/images/".$fname );
  $image_width  = $image_info[0];
  $image_height = $image_info[1];
  $image_type   = $image_info[2];


  switch ( $image_type )
  {

    case IMAGETYPE_JPEG:


    // parse path for the extension
    $info = pathinfo($pathToImages . $fname);
    // continue only if this is a JPEG image
    if ( strtolower($info['extension']) == 'jpeg' ) 
    {

      // load image and get image size
      $img = imagecreatefromjpeg( "{$pathToImages}{$fname}" );

      $width = imagesx( $img );
      $height = imagesy( $img );

      // give the size,u want
      $new_width = 100;
      $new_height = 100;

      // 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 Fix Size Images into a file

      imagejpeg( $tmp_img, "{$pathToFixSizeImages}{$fname}" );

    }
      break;



     case IMAGETYPE_PNG:
         // parse path for the extension
    $info = pathinfo($pathToImages . $fname);
    // continue only if this is a JPEG image
    if ( strtolower($info['extension']) == 'png' ) 
    {

      // load image and get image size
      $img = imagecreatefrompng( "{$pathToImages}{$fname}" );

      $width = imagesx( $img );
      $height = imagesy( $img );


      $new_width = 100;
      $new_height = 100;

      // 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 Fix Size Images into a file

      imagejpeg( $tmp_img, "{$pathToFixSizeImages}{$fname}" );

    }
      break;

    case IMAGETYPE_BMP:
      echo "bmp";
      break;



    default:
      break;
  }
}
  }
  // close the directory
  closedir( $dir );
}

createFixSizeImage("path","path/to/images/to/be/saved",100);