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Amy Hsieh
6,023 PointsWhat information is really stored in $sort = $item["title"] ?
In $sort = $item["title"],
I guess $sort is an array, which stores all the titles of all the items, and we sort the titles within this array?
2 Answers
jamesjones21
9,260 Pointsthe $item['title'] will be stored into the $sort variable, so it's passing responsibility from right to left. If you var_dump($sort) you'll see what is inside the variable.
Amy Hsieh
6,023 PointsThanks, I tried both var_dump ($sort) and var_dump(gettype($sort)); The result from var_dump ($sort) as below seems to me that $sort is an array which has 4 elements (but I am wondering why not 12 elements from all items?) :
string(64) "A Design Patterns: Elements of Reusable Object-Oriented Software" string(54) "Clean Code: A Handbook of Agile Software Craftsmanship" string(50) "Refactoring: Improving the Design of Existing Code" string(63) "The Clean Coder: A Code of Conduct for Professional Programmers"
Am I right? Do you think it's an array?
jamesjones21
9,260 PointsThat is an array yes.
Amy Hsieh
6,023 PointsAmy Hsieh
6,023 PointsThanks for clarification. So in Variable $sort , are there 12 elements (the titles of 12 items), which makes $sort an array?
jamesjones21
9,260 Pointsjamesjones21
9,260 Pointsif you do the following:
this little function will tell you the type of $sort (can show, int, string, float, bool or array). If you remove the gettype function, then it will show you the contents of $sort, which more than likely be the array.
var_dump(gettype($sort));