Admin
Well-Known Member
Staff member
Administrator
1. Tạo file index.php với nội dung
2. Tạo file ảnh watermark png nền trong suốt để làm con dấu với tên wm.png và up song song với index.php
3. tạo thư mục "upload" ngang hàng với index.php và chmod 0777
PHP:
<?php if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/pjpeg"))
&& ($_FILES["file"]["size"] < 900000))
{
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
}
else
{
$file_name = 'upload/'.substr(md5(time()),0,10).'.jpg';
$file = imagecreatefromjpeg($_FILES["file"]["tmp_name"]);
$watermark = @imagecreatefrompng('./wm.png');
$imagewidth = imagesx($file);
$imageheight = imagesy($file);
$watermarkwidth = imagesx($watermark);
$watermarkheight = imagesy($watermark);
$startwidth = (($imagewidth - $watermarkwidth)/1);
$startheight = (($imageheight - $watermarkheight)/1);
imagecopy($file, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight);
#imagecopymerge($file, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight, 80);
imagedestroy($watermark);
imagejpeg($file, $file_name, 90);
ImageDestroy($new);
ImageDestroy($file);
#echo "Upload: " . $_FILES["file"]["name"] . "<br />";
#echo "Type: " . $_FILES["file"]["type"] . "<br />";
#echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";
#echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";
echo '<img src="'.$file_name.'" alt=""/>';
/*if (file_exists("upload/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],
"upload/" . $_FILES["file"]["name"]);
echo "Stored in: " . "upload/" . $_FILES["file"]["name"];
}*/
}
}
else
{
echo "Invalid file";
}
?>
<html>
<body>
<form action="" method="post"
enctype="multipart/form-data">
<label for="file">File:</label>
<input type="file" name="file" id="file" />
<br />
<input type="submit" name="submit" value="Submit" />
</form>
</body>
</html>
<?php
if ($handle = opendir('./upload/')) {
while (false !== ($entry = readdir($handle))) {
if ($entry != "." && $entry != "..") {
echo "<a href=\"upload/$entry\">$entry</a>, \n";
}
}
closedir($handle);
}
?>2. Tạo file ảnh watermark png nền trong suốt để làm con dấu với tên wm.png và up song song với index.php
3. tạo thư mục "upload" ngang hàng với index.php và chmod 0777
