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run code in 300+ PHP versions simultaneously
<?php function p($x) { echo "x"; if (x<= 2) { return 2; } else { return p(x-1)+p(x-2) -1; } } var_dump(p(p(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
x Fatal error: Uncaught Error: Undefined constant "x" in /in/LClUW:5 Stack trace: #0 /in/LClUW(12): p(5) #1 {main} thrown in /in/LClUW on line 5
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 x Fatal error: Uncaught Error: Undefined constant "x" in /in/LClUW:5 Stack trace: #0 /in/LClUW(12): p(5) #1 {main} thrown in /in/LClUW on line 5
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
x Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /in/LClUW on line 5 x Warning: Use of undefined constant x - assumed 'x' (this will throw an Error in a future version of PHP) in /in/LClUW on line 5 int(2)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
x Notice: Use of undefined constant x - assumed 'x' in /in/LClUW on line 5 x Notice: Use of undefined constant x - assumed 'x' in /in/LClUW on line 5 int(2)

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