极客笔记PHP Max() 函数
max() 函数用于找出最高的值。
语法
max(array_values);
或者
max(value1,value2,value3,value4...);
| 名称 | 描述 | 必需/可选 |
|---|---|---|
| array_values | 指定包含数值的数组 | 必需 |
| value1,value2,value3,value4… | 指定要比较的数值（至少需两个值） | 必需 |
示例1
<?php
num=max(4,14,3,5,14.2);
echo "Your number is =max(4,14,3,5,14.2)".'<br>';
echo "By using max function Your number is : ".num;
?>
输出：
Your number is =max(4,14,3,5,14.2)
By using max function Your number is : 14.2
示例2
<?php
num=max(.1, .001, .2, -.5);
echo "Your number is =max(.1, .001, .2, -.5)".'<br>';
echo "By using max function Your number is : ".num;
?>
输出：
Your number is =max(.1, .001, .2, -.5)
By using max function Your number is : 0.2
示例3
<?php
arr= array(110, 20, 52 ,105, 56, 89, 96);
echo "Your number is =array(110, 20, 52 ,105, 56, 89, 96)".'<br>';
echo "By using max() function Your number is : ".max(arr);
?>
输出：
Your number is =array(110, 20, 52 ,105, 56, 89, 96)
By using max() function Your number is : 110
示例4
<?php
arr= array(200, 120, 52 ,105, 56, 89, 94);
//using forloop find the max valueb = 0;
for(i=0;i<count(arr);i++)
{
if (arr[i] > b)
{b = arr[i];
}
}
echo "By using max() function Your number is : ".$b;
?>
输出:
By using max() function Your number is : 200