note 79401 added to function.mt-rand

I needed a function that returns true with a probability of n%, so here's what I came up with: <?php function probability($chance, $out_of = 100) { $random = mt_rand(1, $out_of); return $random <= $chance; } ?> A few usage examples: <?php /* 50% chance, equal to (bool)mt_rand(0, 1) */ var_dump(probability(50)); /* 0.1% chance, floats will not work -- "1 out of 1000 cases" */ var_dump(probability(1, 1000)); /* Practical example */ if (probability(10)) { $damage *= 1.75; // Critical hit! } ?> ---- Server IP: 217.13.201.10 Probable Submitter: 78.51.105.122 ---- Manual Page -- http://www.php.net/manual/en/function.mt-rand.php Edit -- https://master.php.net/note/edit/79401 Del: integrated -- https://master.php.net/note/delete/79401/integrated Del: useless -- https://master.php.net/note/delete/79401/useless Del: bad code -- https://master.php.net/note/delete/79401/bad+code Del: spam -- https://master.php.net/note/delete/79401/spam Del: non-english -- https://master.php.net/note/delete/79401/non-english Del: in docs -- https://master.php.net/note/delete/79401/in+docs Del: other reasons-- https://master.php.net/note/delete/79401 Reject -- https://master.php.net/note/reject/79401 Search -- https://master.php.net/manage/user-notes.php