Working with Concatenation and Whitespace

Question

I'm working on the tasks. And face some problems on the second step of task:
"Create a variable called fullName and assign it a value equal to the concatenation of the firstName variable, a space, the middleName variable, a space, and the lastName variable."
The answer area already has code:
"<?php $firstName = "Mike";
$middleName = "the";
$lastName = "Frog";
echo "The designer at Shirts 4 Mike shirts is named ____";
?>"
Think i'm supposed to answer between "$lastName = "Frog";" & "echo". And I've tried out:
1) 
$fullName = $firstName . "
" . $middleName . "
" . $lastName;
2) 
$fullName = "";
$fullName = $fullName . $firstName . "
";
$fullName = $fullName . $middleName . "
";
$fullName = $fullName . $lastName . "
";
3)
$fullName = $firstName . "
";
$fullName = $fullName . $middleName . "
";
$fullName = $fullName . $lastName . "
";
4)
$fullName = "";
$fullName = $fullName . $firstName . "
";
$fullName = $fullName . $middleName . "
";
$fullName = $fullName . $lastName;
5)
$fullName = $firstName . "
";
$fullName = $fullName . $middleName . "
";
$fullName = $fullName . $lastName;
None of those works. :/
Anyone has suggestion? Thanx a lot!

Stone Preston · Accepted Answer

the task states: "Create a variable called fullName and assign it a value equal to the concatenation of the firstName variable, a space, the middleName variable, a space, and the lastName variable."
it seems like the main cause of your confusion is that you think 
 creates a space perhaps? the 
 escape sequence does not create a space, it creates a new line. you can read more about escape sequences here (http://php.net/manual/en/regexp.reference.escape.php). 
you want a space which you can create by typing " " . its just a pair of quotes with a space inside. 
using that knowledge, you can concatenate the variables with spaces in between like so:
php
$fullName = $firstName . " " . $middleName . " " . $lastName;

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Diana Wu

Diana Wu

Working with Concatenation and Whitespace

1 Answer

Stone Preston

Stone Preston

Diana Wu

Diana Wu

Stone Preston

Stone Preston