You want to create a full name string from $firstName and $lastName with a space between them. Which code correctly does this in PHP?

hard📝 Application Q15 of 15

PHP - Operators

You want to create a full name string from $firstName and $lastName with a space between them. Which code correctly does this in PHP?

A$fullName = $firstName . " " . $lastName;

B$fullName = $firstName + " " + $lastName;

C$fullName = $firstName . $lastName;

D$fullName = '$firstName $lastName';

Step-by-Step Solution

Solution:

Step 1: Understand string concatenation with space
To join first and last names with a space, you must add " " explicitly between them using dot operators.
Step 2: Evaluate each option
A misses the space, B uses + which is invalid for strings, D uses single quotes so variables are not interpolated.
Final Answer:
$fullName = $firstName . " " . $lastName; -> Option A
Quick Check:
Dot with space string joins names correctly [OK]

Quick Trick: Add space as " " between strings with dot [OK]

Common Mistakes:

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