3v4l.org

run code in 300+ PHP versions simultaneously
<?php $fo = new SplFileObject(__FILE__); $fo->seek(1); var_dump($fo->fgets());
based on XN1lN
Output for 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 - 7.2.33, 7.3.16 - 7.3.23, 7.4.0 - 7.4.12, 8.0.0alpha1 - rc2
string(14) "$fo->seek(1); "
Output for 5.0.0 - 5.0.5
Fatal error: Class 'SplFileObject' not found in /in/9C6t8 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: splfileobject in /in/9C6t8 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: splfileobject in /in/9C6t8 on line 2