Write a PHP program to get last n characters of a given string.
Examples:
Input : $str = "neveropen!"
$n = 6
Output : Geeks!
Input : $str = "neveropen!"
$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.
Example:
<?php $str = "neveropen!"; $n = 6; // Starting index of the string // where the new string begins $start = strlen($str) - $n; // New string $str1 = ''; for ($x = $start; $x < strlen($str); $x++) { // Appending characters to the new string $str1 .= $str[$x]; } // Print new string echo $str1; ?> |
Output:
Geeks!
Method 2: Another way to do this use inbuilt library function substr with parameters as the name of the string.
Example:
<?php $str = "neveropen!"; $n = 6; $start = strlen($str) - $n; // substr returns the new string. $str1 = substr($str, $start); echo $str1; ?> |
Output:
Geeks!
Note: In above example, $start can also take -N to create a sub-string of last n characters
