3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = 2.51912115224715E+21; ini_set('precision', 12); var_dump(ini_get('precision')); var_dump($data); ini_set('precision', 14); var_dump(ini_get('precision')); var_dump($data);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
string(2) "12" float(2.51912115224715E+21) string(2) "14" float(2.51912115224715E+21)
Output for 5.2.1 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
string(2) "12" float(2.51912115225E+21) string(2) "14" float(2.5191211522471E+21)
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
string(2) "12" float(2.51912115225E+21) string(2) "14" float(2.5191211522472E+21)
preferences:
104.63 ms | 2689 KiB | 4 Q