random - Actually run a function a certain percentage of the time in PHP -


how can write function in php call given function (anonymous) x% of time?

for example:

function call_weighted(0.1, function() {       echo 'this run approximately 10% of times called'; }); 

function call_weighted($weight, $function) {     if (mt_rand() < $weight * mt_getrandmax()) {         $function();     } }

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