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<?php function fib($n) { if($n < 2) { return 1; } return fib($n - 2) + fib(n - 1); } echo fib(5);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Undefined constant "n" in /in/UBrHU:9 Stack trace: #0 /in/UBrHU(9): fib(3) #1 /in/UBrHU(12): fib(5) #2 {main} thrown in /in/UBrHU on line 9
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: Undefined constant "n" in /in/UBrHU:9 Stack trace: #0 /in/UBrHU(9): fib(3) #1 /in/UBrHU(12): fib(5) #2 {main} thrown in /in/UBrHU on line 9
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant n - assumed 'n' (this will throw an Error in a future version of PHP) in /in/UBrHU on line 9 Warning: A non-numeric value encountered in /in/UBrHU on line 9 Warning: Use of undefined constant n - assumed 'n' (this will throw an Error in a future version of PHP) in /in/UBrHU on line 9 Warning: A non-numeric value encountered in /in/UBrHU on line 9 3
Output for 7.1.0 - 7.1.33
Notice: Use of undefined constant n - assumed 'n' in /in/UBrHU on line 9 Warning: A non-numeric value encountered in /in/UBrHU on line 9 Notice: Use of undefined constant n - assumed 'n' in /in/UBrHU on line 9 Warning: A non-numeric value encountered in /in/UBrHU on line 9 3
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
Notice: Use of undefined constant n - assumed 'n' in /in/UBrHU on line 9 Notice: Use of undefined constant n - assumed 'n' in /in/UBrHU on line 9 3

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