3v4l.org

run code in 300+ PHP versions simultaneously
<?php /* this is interned as a literal string */ $literal = 'o'; /* ord is not called, it's optimized away */ $ord = ord('o'); /* chr is called and returns the interned string */ $chr = chr($ord); var_dump($chr, is_literal($chr));
Output for 8.1.23 - 8.1.30, 8.2.10 - 8.2.26, 8.3.0 - 8.3.4, 8.3.6 - 8.3.14, 8.4.1
Fatal error: Uncaught Error: Call to undefined function is_literal() in /in/nJhc1:11 Stack trace: #0 {main} thrown in /in/nJhc1 on line 11
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Fatal error: Uncaught Error: Call to undefined function is_literal() in /in/nJhc1:11 Stack trace: #0 {main} thrown in /in/nJhc1 on line 11
Process exited with code 255.

preferences:
56.62 ms | 407 KiB | 5 Q