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php mt_rand与rand函数区别与实例

Jun 08, 2016 pm 05:29 PM
echo function rand return

关于这两个函数他们有一个区别就是mt_rand效率要高到rand哦。

<script>ec(2);</script>

mt_rand与rand函数区别与实例
下面我们来看看mt_rand函数的实例吧。

function roll () {
  return mt_rand(1,6);
  }
  echo roll();

function roll ($sides) {
  return mt_rand(1,$sides);
  }
  echo roll(6); // roll a six-sided die
  echo roll(10); // roll a ten-sided die
  echo roll(20); // roll a twenty-sided die
再看一个rand函数的实例吧。

function cn111 () {
  return rand(1,6);
  }
  echo cn111();

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