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run code in 200+ php & hhvm versions
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<?php function silnia($n) { return ($n <= 1) ? 1 : gmp_mul($n, silnia($n-1)); } $strSilnia = (string)silnia(60); echo count($strSilnia);
based on jMDlk
Output for 7.2.0 - 7.2.8
Warning: count(): Parameter must be an array or an object that implements Countable in /in/KQnXt on line 9 1
Output for 5.4.10 - 5.5.34, 5.6.8 - 5.6.20, 5.6.28 - 7.0.5, 7.0.20 - 7.1.20
1
Output for 7.0.6
Fatal error: Uncaught Error: Call to undefined function gmp_mul() in /in/KQnXt:5 Stack trace: #0 /in/KQnXt(8): silnia(60) #1 {main} thrown in /in/KQnXt on line 5
Process exited with code 255.
Output for 5.3.20 - 5.3.29, 5.5.35, 5.6.21
Fatal error: Call to undefined function gmp_mul() in /in/KQnXt on line 5
Process exited with code 255.