Double or single quotations in PHP, especially with variables?

If you use single quotes in PHP, variable values will NOT be evaluated.

For Example:

$adjective = "Great";

'You are a $adjective Person' ==> will return You are a $adjective Person

but

"You are a $adjective Person" ==> will return You are a Great Person.

So, Yes, which quotes you use does matter in PHP. Variable will only evaluate the actual value inside of double quotes. They will NOT evaluate inside of single quotes. This is different from almost all other languages, but an important thing to remember.

Keep Coding! :)

Hmmm... This is a hard question. Personally, I enjoy always using double quotes, but when I have one tiny string like the letter a, I sometimes use single quotes. But keep in mind that either is fine. :)

~Alex