Write a PHP program to get last n characters of a given string.
Examples:
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.
Example:
<?php $str = "GeeksforGeeks!" ;
$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 = "GeeksforGeeks!" ;
$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