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如何学习PHP array_fill()

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Release: 2016-06-13 09:29:44
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如何学习PHP array_fill()

 定义和用法

array_fill() 函数用给定的值填充数组,返回的数组有 number 个元素,值为 value。返回的数组使用数字索引,从 start 位置开始并递增。如果 number 为 0 或小于 0,就会出错。

语法

array_fill(start,number,value)

 

参数

描述

 

start必需。数值,规定键的起始索引。

number必需。数值,规定填充的数量,其值必须大于 0。

value必需。规定要插入的值。

 

 

例子

输出:

Array ( [2] => Dog [3] => Dog [4] => Dog )

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