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PHP PHP Arrays and Control Structures PHP Conditionals Compare

Francois-Victor LOUVEL
Francois-Victor LOUVEL
1,405 Points
Posted by Francois-Victor LOUVEL
Francois-Victor LOUVEL
1,405 Points

Would'nt "if ($a = "Treehouse") {}" return an error ?

One of the question is erroneous, I think... an if statement written as such would return an error, no ?

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! No, it wouldn't. It is possible to check an assignment inside of an if statement. The boolean returned will be based on the "truthiness" of the value assigned. In this case, true would be the evaluation. However, if we had done:

if($a = 0) {}

Then the evaluation would be false. Because 0 is a "falsey" value in PHP. You can find the documentation here.

I once read a great post on this topic, but I'm unable to locate it now. However, I found this on Stackoverflow.

Hope this helps! :sparkles:

Francois-Victor LOUVEL
Francois-Victor LOUVEL
1,405 Points
Francois-Victor LOUVEL
Francois-Victor LOUVEL
1,405 Points

Thank you for you reply and the added links !