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How to implement a simple probability in php
- 墨辰丷Original
- 2018-06-02 09:39:091630browse
This article mainly introduces a simple probability-related code implemented in PHP. It analyzes the principles and usage skills of probability statistics through numerical operations. Friends in need can refer to it
The details are as follows:
<?php
for($i=1;$i<100000;$i++){
$x=mt_rand(0,100);
if($x<20){
$a=$a+1;
}
else{
if($x<50){
$b=$b+1;
}
else{
$c=$c+1;
}
}
}
echo $a . '<br />';
echo $b . '<br />';
echo $c . '<br />';
?> Output result:
19589
29795
50615
The key is mt_rand(0,100)
Pass $a $b The number of occurrences of $c reflects the probability
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