pcelta/virtual-stream

A Virtual Stream Wrapper

, _(*1)

virtual-stream

The Virtual Stream will help you to avoid saving files into filesystem. This is very useful when we're transferring files and testing., _(*2)

Instalation

{
    "require": {
        "pcelta/virtual-stream": "dev-master"
    }
}

How to use it

This library implements StreamWrapper class definition exactly as shown here: http://php.net/manual/en/class.streamwrapper.php., _(*3)

Basically, this class implements all methods needed to avoid calls to filesystem. For example, in this scenario below you can see many function handling a file resource., _(*4)

$filename = __DIR__ . '/dummy.txt';
$resource = fopen($filename, 'w+');

fwrite($resource, 'first');
fwrite($resource, 'second,');
$result = fread($resource, 20);

fclose($resource);

To make sure this example will work you need to give permission on current directory for writing and reading because PHP is going to write it., _(*5)

That could be avoided using Virtual Stream!, _(*6)

Let's have a look at same example above but right now it is using Virtual Stream., _(*7)

Stream::register(); // register a new StreamWrapper

$filename = sprintf('%s://dummy.txt', Stream::DEFAULT_PROTOCOL);
$resource = fopen($filename, 'w+');

fwrite($resource, 'first');
fwrite($resource, 'second,');
$result = fread($resource, 20);

fclose($resource);

Stream::unregister(); // remove a StreamWrapper registered.

In this example, PHP will not use the filesystem to perform these f* functions., _(*8)