PHP method to generate random decimals from 0 to 1-PHP Tutorial-php.cn

PHP method to generate random decimals from 0 to 1

墨辰丷

Release： 2023-03-27 18:38:01

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This article mainly introduces the method of generating 0~1 random decimals in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.

The method for Javascript to generate random decimals from 0 to 1 can call the built-in Math.random();

For example:

<script type="text/javascript">
document.write(Math.random()); // 0.5840498607140034
</script>

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There are rand,mt_rand random methods in php, but neither of these two methods can generate 0~1 random decimal, we can write a method to implement 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().&#39;<br>&#39;;
}
?>

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Output:

59804026251568
67772196544228
90589751205682
45087858822703
17475316774787

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The above is the entire content of this article, I hope it will be helpful to everyone's study.

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