I have this question in PHP challenge, I don't know how they get .

Question

What is the output of this code?
$s="Hi I love PHP.";
$f=$s[strlen($s)-1];
echo $f;

Answer 1

output :
P

Answer 2

The output is the last charater of the string: '.'
strlen gives you the length of the string = 14 characters
Because first character of the string is in position 0, last character is in position strlen($s)-1
$s[13] is character '.'

Answer 3

ami jainena