3v4l.org

run code in 300+ PHP versions simultaneously
<?php $settings['timestamp'] = time(); $urlSafeParams = preg_replace("/%5B\d+%5D/", "%5B%5D", http_build_query($settings)); print $urlSafeParams;
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.6
timestamp=1407338033
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: http_build_query() in /in/drE4N on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: http_build_query() in /in/drE4N on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: http_build_query() in /in/drE4N on line 5
preferences:
139.38 ms | 401 KiB | 221 Q