function upload($uploadfile,$watermark=1,$watertype=1,$content){
foreach($uploadfile['name'] as $key=>$name) { //多檔案上傳函數
uploadall($uploadfile,$key,$watermark,$watertype,$content);
}
}
function uploadall($uploadfile,$i,$watermark,$watertype,$content) {
$watermark=$watermark; //是否附加浮水印(1為加浮水印,其他為不加浮水印);
$watertype=$watertype; //浮水印類型(1為文字,2為圖片)
$watercontent=$content; //浮水印的內容
if(empty($uploadfile['name'][$i])) {
die("未選擇檔案上傳");
}
if($uploadfile['error'][$i] == 2) { //驗證html判斷結果
die("上傳的檔案太大了");
}
$allow_filemaxsize = 2048000; // 2m
$filesize = $uploadfile['size'][$i];
if($filesize > $allow_filemaxsize) {
die("上傳的檔案太大了");
}
$allow_filetypes = array("jpeg", "gif", "png","jpg","pjpeg");//允許上傳的檔案統一資源類型 mimetype
$allow = false; //預設都不允許
$mimetype = $uploadfile['type'][$i]; //上傳檔案的mime檔案類型
foreach($allow_filetypes as $t) {
if(strpos($mimetype, $t) !== false) {
$allow = true; //找到了符合上傳條件的檔案類型
break;
}
}
if($allow == false) {
die("上傳的檔案類型不被允許");
}
$result = is_uploaded_file($uploadfile['tmp_name'][$i]); //判斷是否為上傳動作產生的
if(!$result) {
die("上傳的檔案有誤");
}
$uploaddir = "img/"; //上傳檔案儲存目錄
if(!file_exists($uploaddir)) mkdir($uploaddir, 0777, true);//若上傳儲存目錄不存在，則遞迴建立
/**重新命名檔案**/
$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($result) {
echo "檔案上傳成功";
}else{
switch($uploadfile['error'][$i]) {
case 1:return "上傳的檔案超出了php.ini中設定的最大值";break;
case 2:return "上傳的檔案超出了html中設定的最大值";break;
case 3:return "檔案只有部分被上傳";break;
case 4;return "沒有檔案被上傳";break;
default:die("檔案上傳失敗");
}
}
if($watermark==1) {
$iinfo=getimagesize($uploaddir.$uploadfilename); //擷取圖片的相關資訊，得到數組
$nimage=imagecreatetruecolor($iinfo[0],$iinfo[1]);
$white=imagecolorallocate($nimage,255,255,255); //設定背景顏色為白色
$black=imagecolorallocate($nimage,0,0,0); //設定背景顏色為黑色
$red=imagecolorallocate($nimage,255,0,0); //設定背景顏色為紅色
imagefill($nimage,0,0,$white); //背景填充為白色
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.$uploadfilename);
break;
default:
die("不支援的檔案類型");
exit;
}
imagecopy($nimage,$simage,0,0,0,0,$iinfo['0'],$iinfo['1']);
switch($watertype) {
case 1: //加浮水印字串
imagestring($nimage,5,$iinfo['0']/2-50,$iinfo['1']-30,$watercontent,$black);
break;
case 2: //加浮水印圖片
$simage1 =imagecreatefromgif($watercontent);
$size = getimagesize($watercontent);
imagecopy($nimage,$simage1,$iinfo['0']/2+50,$iinfo['1']-100,0,0,$size[0],$size[1]);
imagedestroy($simage1);
break;
} switch ($iinfo[2]) {
case 1:
imagejpeg($nimage, $uploaddir.$uploadfilename); //將映像$nimage以$destination檔案名稱建立一個jpeg的格式檔案
break;
case 2:
imagejpeg($nimage, $uploaddir.$uploadfilename);
break;
case 3:
imagepng($nimage, $uploaddir.$uploadfilename);
break;
case 6:
imagewbmp($nimage, $uploaddir.$uploadfilename);
break;
}
imagedestroy($nimage); //覆蓋原上傳檔案
imagedestroy($simage);
}
}
if(@$_get['act'] == "insert") { //未作參數校正
//該函數的四個參數分別是：上傳控制項的name值；是否加浮水印（1為加，其他數字為不佳）；
//浮水印的類型（1為字串，2為圖片）；浮水印的內容,字串時寫資料，圖片時寫圖片的地址；
$picture = upload($_files['picture'],1,2,"img/watermark.gif");//上傳檔案，並返回上傳後的檔案路徑名 } ?> |
