3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php ob_start('assert'); echo '1===exit()'; ob_end_flush();
based on itk0V
Output for 7.1.0 - 7.2.0
1===exit() Warning: Cannot call assert() with string argument dynamically in /in/kKmGN on line 5
Output for 5.4.8 - 5.6.21, 7.0.1 - 7.0.20
Fatal error: Unknown: Cannot use output buffering in output buffering display handlers in Unknown on line 0
Process exited with code 255.
Output for 7.0.0
Catchable fatal error: Unknown: Cannot use output buffering in output buffering display handlers in Unknown on line 0
Process exited with code 255.
Output for 5.3.19 - 5.4.7