3v4l.org

run code in 300+ PHP versions simultaneously
<?php $float = array( 12.5, 12.000000001, 12.00000, 12, 12.41757445, 12.071774 ); foreach ($float as $i) { if (preg_match('/\d+.[^1-9]+/', $i)) { echo $i . PHP_EOL; echo round($i) . " match" . PHP_EOL; } }
Output for 5.4.8 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.1.20 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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 - 8.3.7
12.5 13 match 12.000000001 12 match 12.41757445 12 match 12.071774 12 match
Output for 7.1.10

Process exited with code 137.
preferences:
209.81 ms | 401 KiB | 263 Q