Code of three php multi-File Upload instances (1/3)

The code of the three php multi-File Upload instances often meets the File Upload requirement in php development and applications, and sometimes involves multi-file upload, next, let's take a look at the three php multi-File Upload instance codes that I provide. If you have a good time, let's take a look at these multi-File Upload functions.

Three php tutorials multi-File Upload instance code
In php development applications, we often encounter the File Upload requirement and sometimes need to upload multiple files. Let's take a look at the three php multi-File Upload instance codes that I provide, well, let's talk a little more about it. Let's see if these Multifile upload functions are suitable for you.

Sample Code:

<Form action = "" method = "post" enctype = "multipart/form-data">
<Input type = "file" name = "uploadfile []"> the name must be "[]".
<Input type = "file" name = "uploadfile []">

// Set the file types that can be uploaded by users.
$ Type = array ('gif', 'jpg ', 'png', 'zip', 'rar ');
$ Upload = new uploadfile ($ _ files ['uploadfile'], '/', 1024*1024, $ type );
Parameter description: 1: Form file; 2: Upload directory; 3: file size supported; 4: file type allowed
$ Icount = $ upload-> upload ();
If ($ icount> 0) {// upload successful
Print_r ($ upload-> getsaveinfo ());
*/

Class uploadfile {
Var $ postfile = array (); // File Uploaded by the user
Var $ custompath = ""; // customize the File Upload path
Var $ maxsize = ""; // Maximum File Size
Var $ lasterror = ""; // last error message
Var $ allowtype = array ('gif', 'jpg ', 'png', 'zip ', 'rar', 'txt ', 'Doc', 'pdf ');
Var $ endfilename = ""; // The final file name
Var $ saveinfo = array (); // Save the final information of the object
Var $ root_dir = ""; // location of the project on the hard disk

/**
* Constructor
* @ Access public
*/

Function uploadfile ($ arrfile, $ path = "_", $ size = 2097152, $ type = 0 ){
$ This-> postfile = $ arrfile;
$ This-> custompath = $ path = "_"? "": $ Path;
$ This-> maxsize = $ size;
If ($ type! = 0) $ this-> allowtype = $ arrfile;
$ This-> root_dir = $ _ server ['document _ root'];
$ This-> _ mkdir ($ this-> custompath );
}

/**
* Core code for File Upload
* @ Access public
* @ Return int number of successfully uploaded files
*/

Function upload (){
$ Ilen = sizeof ($ this-> postfile ['name']);
For ($ I = 0; $ I <$ ilen; $ I ++ ){
If ($ this-> postfile ['error'] [$ I] = 0) {// No error occurred during upload
// Obtain the current file name, temporary file name, size, and extension, which will be used later.
$ Sname = $ this-> postfile ['name'] [$ I];
$ Stname = $ this-> postfile ['tmp _ name'] [$ I];
$ Isize = $ this-> postfile ['SIZE'] [$ I];
$ Stype = $ this-> postfile ['type'] [$ I];
$ Sextn = $ this-> _ getextname ($ sname );

// Check whether the size of the currently uploaded file is valid.
If ($ this-> _ checksize ){
$ This-> lasterror = "the file you uploaded [". $ sname. "] exceeds the size supported by the system! ";
$ This-> _ showmsg ($ this-> lasterror );
Continue;
}

If (! Is_uploaded_file ($ stname )){
$ This-> lasterror = "your file is not uploaded through normal channels! ";
$ This-> _ showmsg ($ this-> lasterror );
Continue;
}
$ _ Filename = basename ($ sname, ".". $ sextn). "_". time (). ".". $ sextn;
$ This-> endfilename = $ this-> custompath. $ _ filename;

If (! Move_uploaded_file ($ stname, $ this-> root_dir. $ this-> endfilename )){
$ This-> lasterror = $ this-> postfile ['error'] [$ I];
$ This-> _ showmsg ($ this-> lasterror );
Continue;
}

// Store information about the current file for other programs to call.
$ This-> save_info [] = array ("name" => $ sname, "type" => $ sextn, "size" => $ isize, "path" => $ this-> endfilename );
}
}

Return sizeof ($ this-> save_info );
}

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