PHP to add a watermark to the picture tutorial

Source: Internet
Author: User
Tags exit file size imagecopy imagejpeg

PHP to the image watermark relative to the ASP, it is much simpler, look at the following code:

/*****************************************************

Parameter description:

$max _file_size: Upload file size limit, unit byte

$destination _folder: Upload file path

$watermark: Whether additional watermark (1 for Watermark, other for no watermark);

Instructions for use:

1. Remove the "Extension=php_gd2.dll" line in front of the php.ini file, because we need to use the GD library;

2. Change Extension_dir = to the directory where your Php_gd2.dll is located;

3. http://www.knowsky.com/php.asp;

****************************************************/

Upload file Type list

$uptypes =array (

' Image/jpg ',

' Image/jpeg ',

' Image/png ',

' Image/pjpeg ',

' Image/gif ',

' Image/bmp ',

' Image/x-png '

);

$max _file_size=2000000; Upload file size limit, unit byte

$destination _folder= "uploadimg/"; Upload file path

$watermark = 1; Whether to add watermark (1 for Watermark, other for no watermark);

$watertype = 1; Watermark Type (1 for text, 2 for picture)

$waterposition = 1; Watermark position (1 is lower left corner, 2 is lower right corner, 3 is upper left corner, 4 is upper right corner, 5 is centered);

$waterstring = "http://www.xplore.cn/"; Watermark String

$waterimg = "Xplore.gif"; Watermark Picture

$imgpreview = 1; Whether to generate a preview diagram (1 is a build, others are not generated);

$imgpreviewsize =1/2; Thumbnail proportions

?>

<title>zwell Image Upload Program </title>
<style type= "Text/css" >
<!--
Body
{
font-size:9pt;
}
Input
{
Background-color: #66CCFF;
border:1px inset #CCCCCC;
}
-->
</style>
<body>
<form enctype= "Multipart/form-data" method= "post" name= "Upform" >
Upload file:
<input name= "upfile" type= "File" >
<input type= "Submit" value= "Upload" ><br>
The types of files allowed to upload are: <?=implode (', ', $uptypes)?>
</form>
<?php
if ($_server[' request_method '] = = ' POST ')
{
if (!is_uploaded_file ($_files["Upfile"][tmp_name))
Is there a file
{
echo "Picture 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 type
{
echo "file type does not match!". $file [' type '];
Exit
}
if (!file_exists ($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 "Move file Error";
Exit
}
$pinfo =pathinfo ($destination);
$fname = $pinfo [basename];
echo "<font color=red> has been successfully uploaded </font><br> FileName:
<font color=blue> ". $destination _folder. $fname." </font><br> ";
echo "width:". $image _size[0];
echo "Length:". $image _size[1];
echo "<br> size:". $file ["Size"]. "bytes";
if ($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 ("Unsupported file type");
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, $destination);
Break
}
Overwrite original upload file
Imagedestroy ($nimage);
Imagedestroy ($simage);
}
if ($imgpreview ==1)
{
echo "<br> picture preview:<br>";
echo "<ccid_file values=" \ "Width=". ($image _size[0]* $imgpreviewsize). "
Height= ". ($image _size[1]* $imgpreviewsize); "
echo "alt=\" Picture preview: \ r filename: ". $destination." \ r upload time: \ "/>";
}
}
?>
</body>


Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.