PHP image upload Watermark (automatically add watermark) _php Tutorial

PHP image upload Watermark (automatically add watermark)//* This is a perfect php file upload code, the image upload success and automatically add water to the picture, so that a good quick to improve the effect of a single sheet to increase the watermark.

PHP Tutorial Image upload watermark (automatically add watermark)
/*
This is a perfect php file upload code, the image upload success and automatically add water to the picture, so it is very good to improve the speed of a manual sheet to increase the watermark effect.
*/

function upload ($uploadfile, $watermark =1, $watertype =1, $content) {
foreach ($uploadfile [' name '] as $key = + $name) {//multi-File Upload function
Uploadall ($uploadfile, $key, $watermark, $watertype, $content);
}
}
function Uploadall ($uploadfile, $i, $watermark, $watertype, $content) {
$watermark = $watermark; Whether additional watermark (1 is watermark, the other is not watermark);
$watertype = $watertype; Watermark Type (1 for text, 2 for picture)
$watercontent = $content; Content of the watermark
if (Empty ($uploadfile [' name '] [$i])) {
Die ("File Upload not selected");
}
if ($uploadfile [' Error '] [$i] = = 2) {//Validate HTML judgment result
Die ("The uploaded file is too large");
}
$allow _filemaxsize = 2048000; 2m
$filesize = $uploadfile [' Size '] [$i];
if ($filesize > $allow _filemaxsize) {
Die ("The uploaded file is too large");
}
$allow _filetypes = Array ("JPEG", "GIF", "png", "JPG", "pjpeg");//The file that is allowed to be uploaded Uniform resource type mimetype
$allow = false; Default is not allowed
$mimetype = $uploadfile [' type '] [$i]; MIME file types for uploading files
foreach ($allow _filetypes as $t) {
if (Strpos ($mimetype, $t)!== false) {
$allow = true; Found a file type that meets the upload criteria
Break
}
}
if ($allow = = False) {
Die ("The uploaded file type is not allowed");
}
$result = Is_uploaded_file ($uploadfile [' tmp_name '] [$i]); Determines whether the upload action is generated
if (! $result) {
Die ("uploaded file is wrong");
}
$uploaddir = "img/"; Upload File Save Directory
if (!file_exists ($uploaddir)) mkdir ($uploaddir, 0777, true);//If the upload save directory does not exist, the recursive creation
/** Renaming files **/
$filetype = Explode (".", $uploadfile [' name '] [$i]);
$filetype = Array_pop ($filetype);
$uploadfilename = Time (). ".". $filetype;
$_session[' filename '] = $uploadfilename;
End
$result = Move_uploaded_file ($uploadfile [' tmp_name '] [$i], $uploaddir. $uploadfilename);
if ($result) {
echo "File upload succeeded";
}else{
Switch ($uploadfile [' Error '] [$i]} {
Case 1:return "The uploaded file exceeds the maximum value set in PHP.ini";
Case 2:return "The uploaded file exceeds the maximum value set in HTML";
Case 3:return "file is only partially uploaded";
Case 4;return "No files were uploaded";
Default:die ("File upload failed");
}
}
if ($watermark ==1) {
$iinfo =getimagesize ($uploaddir. $uploadfilename); Get the information about the picture and get the array
$nimage =imagecreatetruecolor ($iinfo [0], $iinfo [1]);
$white =imagecolorallocate ($nimage, 255,255,255); Set the background color to white
$black =imagecolorallocate ($nimage, 0,0,0); Set the background color to black
$red =imagecolorallocate ($nimage, 255,0,0); Set the background color to red
Imagefill ($nimage, 0,0, $white); Background fill is white
Switch ($iinfo [2]) {
Case 1:
$simage =imagecreatefromgif ($uploaddir. $uploadfilename);
Break
Case 2:
$simage =imagecreatefromjpeg ($uploaddir. $uploadfilename);
Break
Case 3:
$simage =imagecreatefrompng ($uploaddir. $uploadfilename);
Break
Case 6:
$simage =imagecreatefromwbmp ($uploaddir. $uploadfilename);
Break
Default
Die ("Unsupported file type");
Exit
}
Imagecopy ($nimage, $simage, 0,0,0,0, $iinfo [' 0 '], $iinfo [' 1 ']);
Switch ($watertype) {
Case 1://Add watermark String
Imagestring ($nimage, 5, $iinfo [' 0 ']/2-50, $iinfo [' 1 ']-30, $watercontent, $black);
Break
Case 2://Add watermark Picture
$simage 1 =imagecreatefromgif ($watercontent);
$size = getimagesize ($watercontent);
Imagecopy ($nimage, $simage 1, $iinfo [' 0 ']/2+50, $iinfo [' 1 ']-100,0,0, $size [0], $size [1]);
Imagedestroy ($simage 1);
Break
}

Switch ($iinfo [2]) {
Case 1:
Imagejpeg ($nimage, $uploaddir. $uploadfilename); Create a JPEG format file with the $destination file name in the image $nimage
Break
Case 2:
Imagejpeg ($nimage, $uploaddir. $uploadfilename);
Break
Case 3:
Imagepng ($nimage, $uploaddir. $uploadfilename);
Break
Case 6:
Imagewbmp ($nimage, $uploaddir. $uploadfilename);
Break
}
Imagedestroy ($nimage); Overwrite the original upload file
Imagedestroy ($simage);
}
}
if (@$_get[' act '] = = "Insert") {//no parameter check
The four parameters of the function are: the name value of the upload control, whether watermark (1 is plus, the other number is poor);
The type of watermark (1 is a string, 2 is a picture), the content of the watermark, the string when the data is written, the image when the address of the picture;
$picture = Upload ($_files[' picture '],1,2, "img/watermark.gif");//upload the file and return the file path name after uploading

}

?>

Upload Code

http://www.bkjia.com/PHPjc/444863.html www.bkjia.com true http://www.bkjia.com/PHPjc/444863.html techarticle php image upload watermark (automatically add watermark)//* This is a perfect php file upload code, the image upload successfully and automatically add water to the picture, so it is very good to improve quickly ...

