如何使用http和POST将文件发送到服务器。谁能用语法和方法向我解释？
我只想要C语言
最佳答案
upload.html
<body>
you may upload here...
<br><br>
<form action="uploadhandler.php" method="post" enctype="multipart/form-data">
<input type="file" name="file" id="file"><br><br>
<input type="submit" name="submit" value="Submit">
</form>
</body>
uploadhandler.php
<?php
if(isset($_post['submit']))
{
$allowedExts = array("html", "jpeg", "jpg", "png","zip");
$extension = end($temp);
if ((($_FILES["file"]["type"] == "application/zip")
|| ($_FILES["file"]["type"] == "application/x-zip-compressed")
|| ($_FILES["file"]["type"] == "multipart/x-zip")
|| ($_FILES["file"]["type"] == "application/x-compressed")
|| ($_FILES["file"]["type"] == "application/octet-stream"))
&& ($_FILES["file"]["size"] < 20000000))
{
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br>";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
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"]);
}
}
}
else
{
echo "Invalid file(please upload zip file)";
header("refresh: 1; upload.html");
}
}
else
{
echo "please select a zip file";
header("refresh: 2; upload.html");
}
?>