Question

Anyone know the correct answer for this one?

Incorrect Question 2 0/1 pts In PHP, to concatenate something means None of these To join multiple variables together with an operator To place variables in a specific order in the code To join multiple character strings together

Answer 1

The answer was 4rth one.

To join multiple character strings together.

Because concatenation means adding one string to another string in details adding means appending one string to an another. In PHP we use .(dot) and .=(dot equalto) for concatenation of strings(two or more).

the .(dot) will simply append two strings together. the .=(dot equalto) will append the new string to an existing string.

Example:

$string1="Hello ";

$string2="World!";

$string 3="Nice";

using .(dot):

$new_str=$string1.$string2;

which outputs "Hello World!" without quotes

using .=(dot equal to):

$new_str="";//declaring new string

$new_str.=$string1;//return Hello

$new_str.=$string2;//return Hello World!

$new_str.=$string3;//return Hello World!Nice

If you have any doubts please comment on this answer.

Thank you!!!