PHP method to accept files and get suffix name
This article mainly introduces the method of using PHP to accept files and obtain their suffix names. The author focuses on the use of the $_FILES global variable. Friends in need can refer to
HTML form form
Use an HTML form to simulate a post request for file upload. The code is as follows:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>File Upload</title>
</head>
<body>
<form enctype="multipart/form-data" action="test.php" method="POST">
<input type="hidden" name="MAX_FILE_SIZE" value="30000" />
Send this File:<input name="userfile" type="file"/>
<input type="submit" value="Send File" />
</form>
</body>
</html>
Note:
Make sure that the attribute of the file upload form is enctype="multipart/form- data", otherwise the file cannot be uploaded
PHP
First of all, you need to explain PHP’s global variable $_FILES. This array contains all uploaded file information
-
$_FILE['userfile']['name'] : The original name of the client machine file
$_FILE['userfile']['type'] : The file's original name MIME type
$_FILE['userfile']['size'] : Uploaded file size
$_FILE['userfile' ]['tmpname'] : The temporary file name stored on the server after the file is uploaded
$_FILE['userfile']['error'] : and the error code for uploading the file
Ideas
1. Generate a 40-digit random string as the file name
2. Transfer the file to different file locations depending on whether it is a picture or a voice
3. No verification of file size and file type is required for the time being.
function processFile($files, $type) {
$uploadName = null;
foreach ($files as $name => $value) {
$originalName = $value['name'];
$arr = explode(".", $originalName);
$postfix = $arr[count($arr) - 1];
$tmpPath = $value['tmp_name'];
$tmpType = $value['type'];
$tmpSize = $value['size'];
}
$newname = EhlStaticFunction::generateRandomStr(40).".".$postfix;
switch ($type) {
case 1 :
// 处理声音文件
$destination = VIDEOUPLOADDIR.$newname;
break;
case 2 :
// 处理图像文件
$destination = IMAGEUPLOADDIR.$newname;
break;
}
move_uploaded_file($tmpPath, $destination);
}To obtain the suffix name of the uploaded file, you can use the following code:
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> <meta name="keywords" content=" keywords" /> <meta name="description" content="description" /> </head> <body> <form method="post" action="" enctype="multipart/form-data"> <input type="file" name="upfile" size="20" /> <input type="submit" name="submit" value="submit" /> </form> </body> </html>
PHP
<?PHP
if(isset($_POST['submit'])) {
$string = strrev($_FILES['upfile']['name']);
$array = explode('.',$string);
echo $array[0];
}
?>Result example:
Summary: The above is the entire content of this article, I hope it can be helpful to everyone learning helps.
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