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常用数学函数:php几个常用的数学函数

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Release： 2016-06-21 08:51:12
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echo mt_rand(1,100); //输出1-100之间的随意整数，包括1和100
echo number_format(10000,2); //将整数格式化（3位一个，取2位小数）
floor() 返回num的最小整数
ceil() 返回num的最大整数
round() 四舍五入
min() 求最小值或数组中的最小值
max() 求最大值或数组中的最大值
pow(2,3) 2的3次方
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