Chop() is chopping more than what is asked

Question

I have multiple random strings, and I'm trying to pull "SpottedBlanket" out of the string. Some of them work fine:

DarkBaySpottedBlanket --
DarkBay

BaySpottedBlanket --
Bay

but others are cutting out more than it should.

RedRoanSpottedBlanket --
RedR

BlackSpottedBlanket --
Blac

DunSpottedBlanket --
Du

this is the code I'm using, but I thought it would be self explanatory:

 $AppyShortcut = chop($AppyColor,"SpottedBlanket");

$AppyColor would obviously be the random generated string. Any clue why this is happening?

Answer 1

The chop function takes the string in the second argument - which in this case is "SpottedBlanket", and removes any contiguous characters that it finds from the right hand side.

So for the case of "RedRoanSpottedBlanket", you'd get back "RedR" because "o", "a", and "n" are letters that can be found in the string "SpottedBlanket".

chop() is usually used to remove trailing white space - a way of cleaning user input before performing some action on it.

Give your array:

$strings = ["DarkBaySpottedBlanket", "RedRoanSpottedBlanket", "BlackSpottedBlanket", "DunSpottedBlanket"];

What you might be looking for is somerthing like this:

foreach ($strings as $string) {
  print substr($string, 0, strrpos($string, "SpottedBlanket")) . "\n";
}

This finds the position of the string from the end using strrpos(), then returns the start of the string until that position, using substr().