PHP coding challenge

Concatenating strings

āœØ Your Task

Append string b to string a with a space between the two strings and return the result.

āœļø PHP PHP version: 8.1
šŸ‘‰ Press "Run" and check the result below.
Test cases
When a equals Hello and b equals World!, the result should equal Hello World!
When a equals Good and b equals morning!, the result should equal Good morning!