Home >Backend Development >PHP Tutorial >How to generate random decimals from 0 to 1 through php
Javascript's method of generating random decimals from 0 to 1 can call its own Math.random();
For example:
8019067d09615e43c7904885b5246f0adocument.write(Math.random()); // 0.58404986071400342cacc6d41bbb37262a98f745aa00fbf0
There is in php rand,mt_randrandom methods, but neither of these two methods can generate 0~1 random decimals. We can write a method to achieve this function.
The method for php to generate random decimals from 0 to 1 is as follows:
<?php/** * 生成0~1随机小数 * @param Int $min * @param Int $max * @return Float */function randFloat($min=0, $max=1){ return $min + mt_rand()/mt_getrandmax() * ($max-$min); }// 例子,创建5个0~1随机小数for($i=0; $i<5; $i++){ echo randFloat().'<br>'; }?>
Output:
0.59804026251568 0.67772196544228 0.90589751205682 0.45087858822703 0.17475316774787
Javascript generates 0 ~1 random decimal method can call the built-in Math.random();
For example:
<script type="text/javascript">document.write(Math.random()); // 0.5840498607140034</script>
This article explains how to generate 0~1 random decimal through php , for more related content, pay attention to the php Chinese website.
Related recommendations:
About the usage instructions of the mysql timestamp formatting function from_unixtime
About the mysql functions concat and group_concat Instructions for use
Explanation on how to handle the problem that mysql innodb fails to start and cannot be restarted
The above is the detailed content of How to generate random decimals from 0 to 1 through php. For more information, please follow other related articles on the PHP Chinese website!