PHP receives uploaded files_PHP tutorial
Foreword
I've been working on PHP this week, and I've forgotten a bit about file uploading. I'll record it here.HTML form
Use an HTML form to simulate a post request for file upload. The code is as follows:<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>File Upload</title> </head> <body> </body> </html>
Notice:
Make sure the attribute of the file upload form is enctype="multipart/form-data", otherwise the file cannot be uploaded.
PHP
First, we 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'] : MIME type of the file
$_FILE['userfile']['size'] : Uploaded file size
$_FILE['userfile']['tmpname'] : The temporary file name stored on the server after the file is uploaded
$_FILE['userfile']['error'] : and the error code for uploading the file
Thoughts
1. Generate a 40-digit random string as the file name 2. Transfer the file to different file locations depending on whether it is a picture or a voice. 3. No verification of file size and file type is performed for the time being.function processFile($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);
}
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