Write a PHP program to get last n characters of a given string.
Input : $str = "GeeksforGeeks!" $n = 6 Output : Geeks! Input : $str = "GeeksforGeeks!" $n = 9 Output : forGeeks!
Method 1: Tn this method, traverse the last N characters of the string and keep appending them in a new string.
Method 2: Another way to do this use inbuilt library function substr with parameters as the name of the string.
Note: In above example, $start can also take -N to create a sub-string of last n characters
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