form.php
<html><body><form action="upload.php" method="post" enctype="multipart/form-data"><label for="file">上傳：</label><input type="file" name="file[]"/> <input type="file" name="file[]"/> <input type="submit" name="submit" value="上傳" /></form></body></html>
upload.php
//設定上傳檔案大小限制(單位b)$max_size=500000;//設定上傳檔案的檔案格式限制$format=array("image/jpeg","image/gif","image/png");//檔案上傳目錄$dir=dirname(__FILE__) ."/upload/";//判斷上傳目錄，不存在就建立if(!is_dir($dir)){ mkdir($dir,true);}//批量上傳檔案for($i=0,$j=count($_FILES["file"]["name"]);$i<$j;$i++){ //被上傳檔案的名稱 $name=$_FILES["file"]["name"][$i]; //被上傳檔案的類型 $type=$_FILES["file"]["type"][$i]; //被上傳檔案的大小，以位元組計 $size=$_FILES["file"]["size"][$i]; //儲存在伺服器的檔案的臨時副本的名稱 $tmp_name=$_FILES["file"]["tmp_name"][$i]; //由檔案上傳導致的錯誤碼 $error=$_FILES["file"]["error"][$i]; //判斷檔案大小 if($size>$max_size){ exit("檔案大小超出最大值"); } //判斷檔案格式 if(!in_array($type,$format)){ exit("無效的檔案格式"); } //組建檔案名 date_default_timezone_set("PRC"); $file_name=time().mt_rand(1111, 999999); //擷取檔案格式 $ext=substr($type, strpos($type, "/")+1); if($error>0){ exit($error); }else{ if(move_uploaded_file($tmp_name, $dir.$file_name.".".$ext)){ //exit("上傳成功"); } }}
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