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A program that adds a watermark to a picture

Source: Internet
Author: User
Tags exit file size imagecopy imagejpeg
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Program not tested
CODE:

<?php
/******************************************************************************

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;
******************************************************************************/

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 additional watermarks (1 for Watermark, others 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 generated, others are not generated);
$imgpreviewsize =1/2;   //thumbnail proportions

<title> Zwell picture 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:  //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 "echo "alt=\" Picture preview: \ r filename: ". $destination." \ r upload time: \ ">";
}
}
?>
</body>




This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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