3v4l.org

run code in 300+ PHP versions simultaneously
<?php function string($string) { $string = strip_tags($string); $string = str_replace(' ','', $string); $string = preg_replace('/\s+/','',$string); $string = preg_replace('~\x{00a0}~','',$string); return empty($string); } echo string('Every thing is awesome');
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6

preferences:
178.17 ms | 405 KiB | 310 Q