3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class VariableStream { function stream_open($path, $mode, $options, &$opened_path) { return true; } function stream_read($count) { return "x"; } function stream_write($data) { return strlen($data); } function stream_tell() { return 0; } function stream_eof() { return true; } function stream_seek($offset, $whence) { return false; } function stream_metadata($path, $option, $var) { return true; } } stream_wrapper_register("var", "VariableStream") or die("Failed to register protocol"); chmod("var://myvar", 0777); /* $myvar = ""; $fp = fopen("var://myvar", "r+"); fwrite($fp, "line1\n"); fwrite($fp, "line2\n"); fwrite($fp, "line3\n"); rewind($fp); while (!feof($fp)) { echo fgets($fp); } fclose($fp); var_dump($myvar); */
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 4.3.2 - 5.3.29
Warning: chmod(): No such file or directory in /in/9fVWl on line 42
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: stream_wrapper_register() in /in/9fVWl on line 40