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下面的代码演示了php中如何获取用户上传的文件，并限制文件类型的一般图片文件，最后保存到服务器
- $allowedExts = array("gif", "jpeg", "jpg", "png");
- $extension = end(explode(".", $_FILES["file"]["name"]));
- if ((($_FILES["file"]["type"] == "image/gif")
- || ($_FILES["file"]["type"] == "image/jpeg")
- || ($_FILES["file"]["type"] == "image/jpg")
- || ($_FILES["file"]["type"] == "image/pjpeg")
- || ($_FILES["file"]["type"] == "image/x-png")
- || ($_FILES["file"]["type"] == "image/png"))
- && ($_FILES["file"]["size"] < 20000)
- && in_array($extension, $allowedExts))
- {
- if ($_FILES["file"]["error"] > 0)
- {
- echo "Return Code: " . $_FILES["file"]["error"] . "
";
- }
- else
- {
- echo "Upload: " . $_FILES["file"]["name"] . "
";
- echo "Type: " . $_FILES["file"]["type"] . "
";
- echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB
";
- echo "Temp file: " . $_FILES["file"]["tmp_name"] . "
";
-
- 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";
- }
- ?>
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