$符号是什么意思,这个是做什么用的？

Answer 1

What does the

$ symbol mean and what is it used for? -PHP Chinese website Q&A-What does the $ symbol mean and what is it used for? -PHP Chinese website Q&A

Please watch and learn.

Answer 2

php中$符号是变量符号；

把$符号加上字符串，这个字符串就是一个变量名或对象名。