PHP cross-domain cross-host cross-server file Upload tutorial

Sometimes, for convenience, security, and speed, we place the uploaded files on a single host and use a second-level domain name for access. but how does PHP put the uploaded files on another host? This requires cross-host Upload. now we use instances to show you how to implement this function. how to cross-domain cross-host cross... sometimes, for convenience, security, and speed, we place the uploaded files on a single host and use a second-level domain name for access. but how does PHP put the uploaded files on another host? This requires cross-host Upload. now we use instances to show you how to implement this function.

How do I upload files across domains, hosts, and servers? The most basic Upload method is:

1. the user uploads the file to the web server

2. the web server uses the move_uploaded_file () function to move the uploaded file to the specified folder.

However, sometimes we need to put the uploaded file to another file server that specifically stores the file. at this time, we cannot use move_uploaded_file () to move the file, however, you need to use ftp to transfer files to the file server. the method is very simple... view the code directly: