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Andrew Hartley
2,750 PointsWhy is foreach not considered a PHP function? Is an array function considered different from a function like count?
Questioning the quiz question "Which of the following is not a PHP function?"
count, isset, and date are PHP functions, but foreach is not? An array function is not a function? I am totally confused by this question. Can anybody enlighten me?
2 Answers
Jennifer Nordell
Treehouse TeacherHi there! I'm not exactly sure what you mean by an array function. However, foreach is a loop which is considered a language construct much the same way an if/else statement is considered a construct. That being said, I'm also given to understand that technically speaking $isset() is also a language construct and not a function. I will check up on that, though
The idea here is that some things are hard-coded into the language and some were added by other programmers to become part of the language. They are considered to be constructs.
Hope this helps!
Alena Holligan
Treehouse TeacherI agree that this question is confusing, I'm going to remove it :)
Andrew Hartley
2,750 PointsAndrew Hartley
2,750 PointsThanks, Jennifer, that does help.
In response to your statement about what I meant by "array function" I just googled and the resulting blurb said something about "array function" (I did not click through - I probably should have).
The "construct" vs. "function" dichotomy makes sense, though they seem to work in a similar fashion - e.g. name(arguments/operators) {things it does;} - hence my confusion with the question in the quiz.