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<?php class Factoriel {public function calculate() { if(func_num_args() != 1) throw new Exception ("Invalid arguments count for method calculate!"); if(($n = (int)func_get_arg(0)) <= 0) throw new Exception ("Invalid argument supplied for method calculate!"); $result = 1; foreach(range(1, $n) as $current) $result = $this->multiply ($result, $current); return $result;}private function multiply($left, $right) { return bcmul("$left", "$right"); }}$factoriel = new Factoriel();echo $factoriel->calculate(500);?>
Output for 5.3.0 - 5.3.29, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1220136825991110068701238785423046926253574342803192842192413588385845373153881997605496447502203281863013616477148203584163378722078177200480785205159329285477907571939330603772960859086270429174547882424912726344305670173270769461062802310452644218878789465754777149863494367781037644274033827365397471386477878495438489595537537990423241061271326984327745715546309977202781014561081188373709531016356324432987029563896628911658974769572087926928871281780070265174507768410719624390394322536422605234945850129918571501248706961568141625359056693423813008856249246891564126775654481886506593847951775360894005745238940335798476363944905313062323749066445048824665075946735862074637925184200459369692981022263971952597190945217823331756934581508552332820762820023402626907898342451712006207714640979456116127629145951237229913340169552363850942885592018727433795173014586357570828355780158735432768888680120399882384702151467605445407663535984174430480128938313896881639487469658817504506926365338175055478128640000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Output for 7.3.32 - 7.3.33, 7.4.33, 8.0.13
Fatal error: Uncaught Error: Call to undefined function bcmul() in /in/OdQWQ:1 Stack trace: #0 /in/OdQWQ(1): Factoriel->multiply(1, 1) #1 /in/OdQWQ(1): Factoriel->calculate(500) #2 {main} thrown in /in/OdQWQ on line 1
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Fatal error: Call to undefined function bcmul() in /in/OdQWQ on line 1
Process exited with code 255.

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