<?php
var_dump($x = fopen("data:text/plain,trololololo", 'r+'));
var_dump(fwrite($x, '123'), rewind($x));
var_dump(stream_get_contents($x));
echo "\r\n";
var_dump($x = fopen("data:text/plain,trololololo", 'w'));
var_dump(fwrite($x, '123'), rewind($x));
var_dump(stream_get_contents($x));
echo "\r\n";
var_dump($x = fopen("data:text/plain,trololololo", 'a'));
var_dump(fwrite($x, '123'), rewind($x));
var_dump(stream_get_contents($x));
echo "\r\n";
preferences:
40.85 ms | 402 KiB | 5 Q