# 基础

- [数据类型和常量](https://phper.shujuwajue.com/ji-chu/shu-ju-lei-xing-he-chang-liang.md)
- [字符串](https://phper.shujuwajue.com/ji-chu/zi-fu-chuan.md)
- [字符编码](https://phper.shujuwajue.com/ji-chu/zi-fu-chuan/zi-fu-bian-ma.md)
- [字符编码相关编程](https://phper.shujuwajue.com/ji-chu/zi-fu-chuan/zi-fu-bian-ma-xiang-guan-bian-cheng.md)
- [引用变量](https://phper.shujuwajue.com/ji-chu/yin-yong-bian-liang.md)
- [运算符与错误控制符@](https://phper.shujuwajue.com/ji-chu/yun-suan-fu-yu-cuo-wu-kong-zhi-7b26.md)
- [流程控制与条件判断](https://phper.shujuwajue.com/ji-chu/liu-cheng-kong-zhi-yu-ju.md)
- [foreach遍历中的引用](https://phper.shujuwajue.com/ji-chu/liu-cheng-kong-zhi-yu-ju/foreachbian-li-zhong-de-yin-yong.md)
- [函数](https://phper.shujuwajue.com/ji-chu/han-shu.md)
- [文件及目录处理](https://phper.shujuwajue.com/ji-chu/wen-jian-ji-mu-lu-chu-li.md)


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