Конверт на файлов формат

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sle

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Има ли начин при Upload на файл да се направи само да сменя формата през PHP? Например качвам картинка BMP и при upload го записва като *.JPG :) Просто да му преименува формата.


-отделно ако можете да ми кажете как да преименувам формата на файлове на компютъра... става въпрос за повече от 100..
 
Ето това е решението


Код: 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
     <head>
          <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
          <title></title>
     </head>
     <body>
          <?php

          function ConvertBMP2GD($src, $dest = false) {
               if(!($src_f = fopen($src, "rb"))) {
                    return false;
               }
               if(!($dest_f = fopen($dest, "wb"))) {
                    return false;
               }
               $header = unpack("vtype/Vsize/v2reserved/Voffset", fread($src_f,14));
               $info = unpack("Vsize/Vwidth/Vheight/vplanes/vbits/Vcompression/Vimagesize/Vxres/Vyres/Vncolor/Vimportant",fread($src_f, 40));

               extract($info);
               extract($header);

               if($type != 0x4D42) { // signature "BM"
                    return false;
               }

               $palette_size = $offset - 54;
               $ncolor = $palette_size / 4;
               $gd_header = "";
               // true-color vs. palette
               $gd_header .= ($palette_size == 0) ? "\xFF\xFE" : "\xFF\xFF";
               $gd_header .= pack("n2", $width, $height);
               $gd_header .= ($palette_size == 0) ? "\x01" : "\x00";
               if($palette_size) {
                    $gd_header .= pack("n", $ncolor);
               }
               // no transparency
               $gd_header .= "\xFF\xFF\xFF\xFF";

               fwrite($dest_f, $gd_header);

               if($palette_size) {
                    $palette = fread($src_f, $palette_size);
                    $gd_palette = "";
                    $j = 0;
                    while($j < $palette_size) {
                         $b = $palette{$j++};
                         $g = $palette{$j++};
                         $r = $palette{$j++};
                         $a = $palette{$j++};
                         $gd_palette .= "$r$g$b$a";
                    }
                    $gd_palette .= str_repeat("\x00\x00\x00\x00", 256 - $ncolor);
                    fwrite($dest_f, $gd_palette);
               }

               $scan_line_size = (($bits * $width) + 7) >> 3;
               $scan_line_align = ($scan_line_size & 0x03) ? 4 - ($scan_line_size &
                   0x03) : 0;

               for($i = 0, $l = $height - 1; $i < $height; $i++, $l--) {
               // BMP stores scan lines starting from bottom
                    fseek($src_f, $offset + (($scan_line_size + $scan_line_align) *
                        $l));
                    $scan_line = fread($src_f, $scan_line_size);
                    if($bits == 24) {
                         $gd_scan_line = "";
                         $j = 0;
                         while($j < $scan_line_size) {
                              $b = $scan_line{$j++};
                              $g = $scan_line{$j++};
                              $r = $scan_line{$j++};
                              $gd_scan_line .= "\x00$r$g$b";
                         }
                    }
                    else if($bits == 8) {
                              $gd_scan_line = $scan_line;
                         }
                         else if($bits == 4) {
                                   $gd_scan_line = "";
                                   $j = 0;
                                   while($j < $scan_line_size) {
                                        $byte = ord($scan_line{$j++});
                                        $p1 = chr($byte >> 4);
                                        $p2 = chr($byte & 0x0F);
                                        $gd_scan_line .= "$p1$p2";
                                   } $gd_scan_line = substr($gd_scan_line, 0, $width);
                              }
                              else if($bits == 1) {
                                        $gd_scan_line = "";
                                        $j = 0;
                                        while($j < $scan_line_size) {
                                             $byte = ord($scan_line{$j++});
                                             $p1 = chr((int) (($byte & 0x80) != 0));
                                             $p2 = chr((int) (($byte & 0x40) != 0));
                                             $p3 = chr((int) (($byte & 0x20) != 0));
                                             $p4 = chr((int) (($byte & 0x10) != 0));
                                             $p5 = chr((int) (($byte & 0x08) != 0));
                                             $p6 = chr((int) (($byte & 0x04) != 0));
                                             $p7 = chr((int) (($byte & 0x02) != 0));
                                             $p8 = chr((int) (($byte & 0x01) != 0));
                                             $gd_scan_line .= "$p1$p2$p3$p4$p5$p6$p7$p8";
                                        } $gd_scan_line = substr($gd_scan_line, 0, $width);
                                   }

                    fwrite($dest_f, $gd_scan_line);
               }
               fclose($src_f);
               fclose($dest_f);
               return true;
          }
          function imagecreatefrombmp($filename) {
               $tmp_name = tempnam("/tmp", "GD");
               if(ConvertBMP2GD($filename, $tmp_name)) {
                    $img = imagecreatefromgd($tmp_name);
                    unlink($tmp_name);
                    return $img;
               } return false;
          }
          $img = imagecreatefrombmp("твоята снимка.bmp");
          imagejpeg($img, "преобразена снимка.jpg");
          ?>
          <img src="преобразена снимка.jpg">
     </body>
</html>
 
Трябва да си влезнал или регистриран, за да отговориш тук.

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