- var_dump: documentation ( source)
- fgets: documentation ( source)
- fwrite: documentation ( source)
- fseek: documentation ( source)
- fopen: documentation ( source)
<?php
$socket = fopen('php://memory', 'a+');
fwrite($socket, 'ab');
fseek($socket, 0);
fwrite($socket, 'a');
var_dump(fgets($socket));