PHP operator <> [duplicate]

Question

What does the following code do? A link to something in the PHP manual would also be nice.

if ($_SERVER['SERVER_PORT'] <> 443) {     doSomething(); } 

Answer 1

Same as !=, "Not equal"

false <> true // operator will evaluate expression as true false != true // operator will evaluate expression as true 

Here is some reference: PHP Comparison Operators