3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); function php_const_dir() { $posix = ('/' == DIRECTORY_SEPARATOR) ? true : false; $path = substr(__FILE__, 0, strrpos(__FILE__, DIRECTORY_SEPARATOR)); return !$posix ? str_replace('\\', '/', rtrim($path, '/\\')) : rtrim($path, '/'); } function php_const_eol() { switch (strtoupper(substr(PHP_OS, 0, 3))) { case 'DAR': return "\r"; break; // Mac case 'WIN': return "\r\n"; break; // Windows/DOS default: return "\n"; // POSIX/Unix } } (@__DIR__ == '__DIR__') && define('__DIR__', php_const_dir()); (@PHP_EOL == 'PHP_EOL') && define('PHP_EOL', php_const_eol()); var_dump(__DIR__); var_dump(PHP_EOL);

preferences:
45.3 ms | 402 KiB | 5 Q