php data type array

We will not study array types here, because there will be a chapter to explain them in the future.

Key points of this chapter:

Know that the array is a composite type

The English name of the array is array, when var_dump a variable The type you see is array, and this variable is the array type.

The simplest and most basic array declaration [default]

Next we declare an array to understand that it can be inserted into the array Just multiple values.

<?php
//定义$shu这个变量
//数组声明是向array里面插入一个或者多个值
//一个或者多个值用逗号分开
$shu = array(1,2,3);

?>

array Pronunciation: [ə'reɪ]
Explanation: array, queue