Concatenation is putting two or more things in one line
Let's say I want to write "I want to learn php in songnes.com to write a music program"
First we create a variable $learn to hold the value of "php"
Then we create another variable $program to put "music"
don't forget to put the semicolon ; at the end of each line;
Then we echo the line, but we put it together using the "dot" .
So you type a string of thext and then a .
right next to the dot, the variable name
then another string, notice how you leave a space.
Finish with the semicolon;
The idea of this is very useful, later you can just change the "value" of the variable and the program will update automatically.
Instead of $learn = "php";, you can have $learn = "html"; or $learn = "anything";
Copyright 2017, July, 07