Editing Nested function (section)

=== Lambda ===

In [[PHP]] and other languages, the [[anonymous function|lambda]] is an alternative. A function is defined in a code statement rather than declared with the usual function syntax. It has no name but is callable via a [[function reference]]. Such functions can be defined inside of a function as well as in other scopes. To use local variables in the anonymous function, use [[Closure (computer science)|closure]].