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PHP 零基础入门笔记（4）：PHP数据类型

彭世瑜发布时间：2022-04-14 09:57:22 ，浏览量：3

PHP 数据类型数据类型 data type

在 PHP 中指的是存储的数据本身的类型，而不是变量的类型
PHP 是一种弱类型语言，变量本身没有数据类型

3 大类 8 小类数据类型

简单（基本）数据类型：4 个小类
- 整型 int/integer
- 浮点型 float/double
- 字符串型 string
- 布尔类型 bool/boolean 只有两个值 true/false
复合数据类型：2 个小类
- 对象类型 object
- 数组类型 array
特殊数据类型：2 个小类
- 资源类型 resource
- 空类型 null

类型转换

自动转换：系统根据需求自己判断
强制转换：人为根据需要手动转换


    
        
            
                
                
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