what is stream and stream wrapper in php
file, php, stream
Solution
Not all streams are implemented at that level, most built-ins are at C level, so no, as far as PHP is concerned not a `streamwrapper` object. That interface makes sure it works like a stream, not the other way around. (In essence: all streamwrappers can be accessed like a stream resource, but not all stream resources are provided by streamwrapper classes). You can however override for instance the `file:///` wrapper and other built-ins, great fun.
Problem
For my understanding of streams in PHP, a stream is an interface that provides methods for reading from and writing to a resource and this interface is implemented by different types of stream wrappers (http,ftp,file etc) for providing specific functionality. So when we say fopen() opens up stream, does it mean instantiation of a specific stream wrapper object? Please clarify me if i am wrong Thanks