How do i return last character of a string?

[lucuis]

Hey. Im trying to output last character of a givent string

my code :

 function  lastchar($str){

}

[lucuis]

i still havent found ):

[astonecipher]

Doesn’t appear you’ve looked either

[frankbeen]

Try google?

[chorn]

what would you do to get the first character? what would you do to get any range of characters?