PHP image upload, can be implemented preview _php tutorial

PHP Tutorial picture Upload, can be implemented preview

Header ("content-type:text/html; charset=gb2312 ");
$uptypes =array (' image/jpg ',//upload file type list
' Image/jpeg ',
' Image/png ',
' Image/pjpeg ',
' Image/gif ',
' Image/bmp ',
' Application/x-shockwave-flash ',
' Image/x-png ',
' Application/msword ',
' Audio/x-ms-wma ',
' Audio/mp3 ',
' Application/vnd.rn-realmedia ',
' Application/x-zip-compressed ',
' Application/octet-stream ');

$max _file_size=10000000; Upload file size limit, unit byte
$path _parts=pathinfo ($_server[' php_self '); Get current path
$destination _folder= "up/"; Upload file path
$watermark = 0; Whether to add watermark (1 is watermark, 0 is not watermark);
$watertype = 1; Watermark Type (1 for text, 2 for picture)
$waterposition = 2; The watermark position (1 is the lower left corner, 2 is the lower right corner, 3 is the upper left corner, 4 is the upper right corner, and 5 is centered);
$waterstring = "www.yinao.tk"; Watermark String
$waterimg = "Xplore.gif"; Watermark Picture
$imgpreview = 1; Whether to generate a preview map (1 is generated, 0 is not generated);
$imgpreviewsize =1/1; Thumbnail scale
?>


Image upload Storage

if ($_server[' request_method '] = = ' POST ')
{
if (!is_uploaded_file ($_files["Upfile"][tmp_name]))
Whether the file exists
{
echo "file does not exist! ";
Exit
}

$file = $_files["Upfile"];
if ($max _file_size < $file ["size"])
Check File size
{
echo "file is too big! ";
Exit
}

if (!in_array ($file ["type"], $uptypes))
Check file types
{
echo "Cannot upload this type of file! ";
Exit
}

if (!file_exists ($destination _folder))
mkdir ($destination _folder);

$filename = $file ["Tmp_name"];
$image _size = getimagesize ($filename);
$pinfo =pathinfo ($file ["name"]);
$ftype = $pinfo [extension];
$destination = $destination _folder.time (). ".". $ftype;
if (file_exists ($destination) && $overwrite! = True)
{
echo "file with the same name already exists! ";
Exit
}

if (!move_uploaded_file ($filename, $destination))
{
echo "Error moving File! ";
Exit
}

$pinfo =pathinfo ($destination);
$fname = $pinfo [basename];
echo "successfully uploaded, Mouse moved to the address bar to automatically copy

Picture UBB Code File Address: File Address:

";
echo "width:". $image _size[0];
echo "Length:". $image _size[1];
if ($watermark ==1)
{
$iinfo =getimagesize ($destination, $iinfo);
$nimage =imagecreatetruecolor ($image _size[0], $image _size[1]);
$white =imagecolorallocate ($nimage, 255,255,255);
$black =imagecolorallocate ($nimage, 0,0,0);
$red =imagecolorallocate ($nimage, 255,0,0);
Imagefill ($nimage, 0,0, $white);
Switch ($iinfo [2])
{
Case 1:
$simage =imagecreatefromgif ($destination);
Break
Case 2:
$simage =imagecreatefromjpeg ($destination);
Break
Case 3:
$simage =imagecreatefrompng ($destination);
Break
Case 6:
$simage =imagecreatefromwbmp ($destination);
Break
Default
Die ("Cannot upload this type of file! ");
Exit
}

Imagecopy ($nimage, $simage, 0,0,0,0, $image _size[0], $image _size[1]);
Imagefilledrectangle ($nimage, 1, $image _size[1]-15,80, $image _size[1], $white);

Switch ($watertype)
{
Case 1://Add watermark String
Imagestring ($nimage, 2,3, $image _size[1]-15, $waterstring, $black);
Break
Case 2://Add watermark Picture
$simage 1 =imagecreatefromgif ("Xplore.gif");
Imagecopy ($nimage, $simage 1,0,0,0,0,85,15);
Imagedestroy ($simage 1);
Break
}

Switch ($iinfo [2])
{
Case 1:
Imagegif ($nimage, $destination);
Imagejpeg ($nimage, $destination);
Break
Case 2:
Imagejpeg ($nimage, $destination);
Break
Case 3:
Imagepng ($nimage, $destination);
Break
Case 6:
Imagewbmp ($nimage, $destination);
Imagejpeg ($nimage, $destination);
Break
}

Overwrite the original upload file
Imagedestroy ($nimage);
Imagedestroy ($simage);
}

if ($imgpreview ==1)
{
echo "
Picture preview:
";
echo "echo" alt= "Picture preview: R filename:". $fname. " R upload time: ". Date (' m/d/y h:i ')." "border= ' 0 ' >";
}
}
?>

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