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PHP Build a Simple PHP Application Listing Inventory Items Creating the Products Array

Posted by Yaxin Yuan
Yaxin Yuan
11,191 Points

key and the order of "foreach" loop

Not sure if key has anything to do with the order that foreach progress... But if I wrote something like this: $products = array(); $products[4] = "Logo Shirt, Red"; $products[3] = "Mike the Frog Shirt, Black"; $products[2] = "Mike the Frog Shirt, Blue"; $products[1] = "Logo Shirt, Green";

Turns out "Logo Shirt, Red" still gets displayed first. But based on what I learnt from other language, "Logo Shirt, Green" should come first...

Kinda confusing here....

1 Answer

Hugo Paz
Hugo Paz
15,622 Points
Hugo Paz
Hugo Paz
15,622 Points

HI Yaxin,

You are passing a key to the value in the array. This key is independent of the inner pointer php uses to tell in which position an element is in the array.

If you do a var_dump() of that array you get this:

array(4) { [4]=> string(15) "Logo Shirt, Red" [3]=> string(26) "Mike the Frog Shirt, Black" [2]=> string(25) "Mike the Frog Shirt, Blue" [1]=> string(17) "Logo Shirt, Green" }

You can see the key (between the square brackets) with the corresponding value.