how to convert image from BMP to JPG type in php

Step - 1
$upload_path = "your full upload path where image will store";
if($_FILES['file']['type']=='image/bmp')
{
$name=explode('.',$_FILES['file']['name']);
$name=$name[0].".jpg";
$img = ImageCreateFromBmp($upload_path.$_FILES['file']['name']);
imagejpeg($img,$upload_path.$name); // Convert to jpg file
unlink($upload_path.$_FILES['file']['name']); // Delete BMP File

// Your Databse operation here

}

Step - 2
// Now Define function
function ImageCreateFromBmp($filename)
{

$tmp_name = tempnam("/tmp", "GD");

if(bmp2gd($filename, $tmp_name))
{

$img = imagecreatefromgd($tmp_name);

unlink($tmp_name);

return $img;
}
return false;
}


function bmp2gd($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)
{
return false;
}


$palette_size = $offset - 54;
$ncolor = $palette_size / 4;
$gd_header = "";


$gd_header .= ($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);
}

$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--)
{

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";
}
}
elseif($bits == 8)
{
$gd_scan_line = $scan_line;
}
elseif($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, $width);
}
elseif($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;
}