To upload FILES in php, use the ultra-Global Array $ _ FILES. in the form, add the sentence enctype = & quot; multipart/form-data & quot, otherwise, $ _ FILES cannot be set. To upload FILES in php, use the ultra-Global Array $ _ FILES. you must add enctype = "multipart/form-data" to the form, otherwise, $ _ FILES cannot be set.
The $ _ FILES array information is as follows:
$ _ FILES ['upload _ file'] ['name'] // Obtain the file name.
$ _ FILES ['upload _ file'] ['tmp _ name'] // get the temporary storage location
$ _ FILES ['upload _ file'] ['size'] // get the file size
$ _ FILES ['upload _ file'] ['type'] // Obtain the object MIME type.
The following is the instance code:
Php file Upload instance
$ Upload_file = $ _ FILES ['upload _ file'] ['tmp _ name'];
$ Upload_file_name = $ _ FILES ['upload _ file'] ['name'];
If ($ upload_file ){
$ File_size_max = 1000000; // 1 MB limit the maximum file upload capacity (bytes)
$ Store_dir = "E:/"; // storage location of the uploaded file
$ Accept_overwrite = 1; // whether to overwrite the same file
// Check the file size
If ($ upload_file_size> $ file_size_max ){
Echo "Sorry, your file capacity exceeds the limit ";
Exit;
}
// Check the read/write file
If (file_exists ($ store_dir. $ upload_file_name )&&! $ Accept_overwrite ){
Echo "files with the same file name exist ";
Exit;
}
// Copy the file to the specified directory
If (! Move_uploaded_file ($ upload_file, $ store_dir. $ upload_file_name )){
Echo "failed to copy the file ";
Exit;
}
}
Echo"You uploaded the file :";
Echo $ _ FILES ['upload _ file'] ['name'];
Echo"
";
// The original name of the client machine file.
Echo "the MIME type of the file is :";
Echo $ _ FILES ['upload _ file'] ['type'];
// MIME type of the file, which must be supported by the browser, for example, "image/gif ".
Echo"
";
Echo "Upload file size :";
Echo $ _ FILES ['upload _ file'] ['size'];
// Size of the uploaded file, in bytes.
Echo"
";
Echo "the file is temporarily stored after being uploaded :";
Echo $ _ FILES ['upload _ file'] ['tmp _ name'];
// Temporary file name stored on the server after the file is uploaded.
Echo"
";
$ Erroe = $ _ FILES ['upload _ file'] ['error'];
Switch ($ Erroe ){
Case 0:
Echo "uploaded successfully"; break;
Case 1:
Echo "the uploaded file exceeds the limit of the upload_max_filesize option in php. ini."; break;
Case 2:
Echo "the size of the uploaded file exceeds the value specified by the MAX_FILE_SIZE option in the HTML form. "; Break;
Case 3:
Echo "only part of the file is uploaded"; break;
Case 4:
Echo "no file is uploaded"; break;
}
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