3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo str_len('12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567');
based on 5J7qQ
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Call to undefined function str_len() in /in/0V8OH:3 Stack trace: #0 {main} thrown in /in/0V8OH on line 3
Process exited with code 255.
Output for 5.3.21 - 5.6.28
Fatal error: Call to undefined function str_len() in /in/0V8OH on line 3
Process exited with code 255.