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Riccardo Busin11,741 Points
I have doubts about the answer to a question of a test
Hi, the test asks me: "How would I add an element to $myList with a KEY of "Orange" and a value of "Fruit"?"
and i selected the answer : "array_push($myList, "Orange" => "Fruit")" but the correct answer was "$myList["Orange"] = "Fruit"."
Since the test asks me to ADD and not to REPLACE why "array_push($myList, "Orange" => "Fruit")" isn't correct?
Thanks for reading and I wish you a good day.
Jason AnelloCourses Plus Student 94,610 Points
array_push can't be used to push a key/value pair onto an array. It can only push a value onto the array and it will be given an integer index for the key.
Micah Doulos17,663 Points
I found this confusing as well, but basically, array_push(variable, "value"); is used for single value arrays. And Variable[key] = value; is used for key/value paired arrays. $myList["Orange"] = "Fruit"; would add Orange/Fruit to the end of the array if it did not exist in the array, or it would replace whatever value Orange had with Fruit, if Orange did exist in the array.
Chet Callahan8,648 Points
We don't learn this technique until a few videos after this task (Mixing Data Types in Arrays), a fairly common occurrence in various Treehouse courses unfortunately