PHP swfupload How to create thumbnails and save them to a specified folder

 

upload.php   <?php/*  * swfupload picture upload    */      if (Isset ($_post["PHPSESSID"])) {         session_id ($_post["PHPSESSID"]);    }     session_start ();     Ini_set ("Html_errors", "0");     if (!isset ($_files["Filedata"])!is_uploaded_file ($_files["Filedata" ["Tmp_name"]) $_files["Filedata" ["Error"]!= 0 {        echo "Error: Invalid upload!";         exit (0);    } &nbs P    //Get the image and create a thumbnail       $file _types=explode (".", $_files["Filedata"] [nam E "]);       $file _type= $file _types[count ($file _types)-1];     if (Strtolower ($file _type) = = ' gif ')     {        $img = Imagecreatefromgif ($_f iles["Filedata" ["Tmp_name"]);    }     Else if (Strtolower ($file _type) = = ' png ')     {        $img = IM Agecreatefrompng ($_files["Filedata" ["Tmp_name"]);    }     Else if (Strtolower ($file _type) = = ' bmp ')     {        $img = IM Agecreatefromwbmp ($_files["Filedata"] ["tmp_name"]);    }     Else     {        $img = Imagecreatefromjpeg ($_files["Filedat A "[" Tmp_name "]);    }       if (! $img) {        echo "error: Unable to create image". $_files["Filedata" ["Tmp_name"];         exit (0);    }       $width = Imagesx ($img);     $height = Imagesy ($img);       if (! $width! $height) {        echo "Error: Invalid high or High";         Exi T (0);    }      //build the thumbnail     $target _width = 100;     $target _height = 100;     $target _ratio = $target _width/$target _height;       $IMG _ratio = $width/$height;   &NBSP;   if ($target _ratio > $img _ratio) {        $new _height = $target _height;         $new _width = $img _ratio * $target _height;    } else {        $new _height = $target _width/$img _ratio;         $ New_width = $target _width;    }       if ($new _height > $target _height) {        $new _height = $tar Get_height;    }     if ($new _width > $target _width) {        $new _height = $target _width ;    }       $new _img = imagecreatetruecolor (100, 100);     if (! @imagefilledrectangle ($new _img, 0, 0, $target _width-1, $target _height-1, 0)) {//Fill the image Black         echo "Error: Cannot fill new picture";         exit (0);    }       if (! @imagecopyresampled ($new _img, $img, ($target _width-$new _width)/2, ($target _ height-$new _heigHT)/2, 0,0, $new _width, $new _height, $width, $height)) {        echo "Error: Image not resized";     &N Bsp   Exit (0);    }       if (!isset ($_session["File_info")) {        $_session["File_inf O "] = array ();    }     Ob_start ();     imagejpeg ($new _img);     $imagevariable = ob_get_contents ();     Ob_end_clean ();       $file _id = MD5 ($_files["Filedata"] ["tmp_name"] + rand () *100000);       $_session["File_info" [$file _id] = $imagevariable;     echo "Fileid:". $file _id;  //return the file ID to the script     include ("upimg.class.php");     if (!empty ($_files["Filedata"]) and count (Explode (",", $_session["Upload_tem")) <5)     {         $folder = "upload/images/tem/". Date ("y-m-d");         $up = new Upimg ("$folder", "$folder"); Can be written as: $up = new upimg (); &nbsp       $up->autothumb = TRUE; Can omit         $up->srcdel=true;         $up->thumbwidth = 550; can be omitted         $up->thumbheight = 400; Can omit         $up->maxsize=2014; Upload file size Unit is KB         $result = $up->upload (' filedata '); The Name property value of <input/> in HTML         $_session["Upload_tem"]=$_session["Upload_tem"]. ",". $up- >thumbPath;         $_session["Upload_tem"]=trim ($_session["Upload_tem"], ",");      }  ?>