echo $num[$i].'<br />';.'<br />' 这里的点是什么意思?

Answer 1

String concatenation character, often used to connect constants and variables

Answer 2

echo $num[$i].'<br />';.'<br />' What does the dot here mean? -PHP Chinese website Q&A-echo $num[$i].'&lt ;br />';.'<br />' What does the dot here mean? - PHP Chinese website Q&A

Take a look and learn.

Answer 3

字符串连接符，用来连接字符串用的