3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = "¿Holá?"; print str_len($x); print $x[0]; print substr($x, 1); print htmlentities($x);
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function str_len() in /in/siCDk:4 Stack trace: #0 {main} thrown in /in/siCDk on line 4
Process exited with code 255.
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
Fatal error: Call to undefined function str_len() in /in/siCDk on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: str_len() in /in/siCDk on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: str_len() in /in/siCDk on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: str_len() in /in/siCDk on line 4