How to find the Index of Last Occurrence of Substring in Perl - Step by Step Examples

How to find the Index of Last Occurrence of Substring in Perl ?

To find the index of the last occurrence of a substring in Perl, you can use the rindex function.

In this example,

We create a string variable $str with a string value.
We use the rindex function to find the index of the last occurrence of a specific substring within $str.
The rindex function returns the index of the last occurrence of the substring in the string.
Finally, we print the index.

$str = "Hello World, Hello Perl";
$last_index = rindex($str, 'H');
print "Last index of substring is: $last_index\n";

Last index of substring is: 14

In this example,

We create two string variables $str1 and $str2 with different values.
We use the rindex function to find the index of the last occurrence of $str2 within $str1.
The rindex function returns the index of the last occurrence of $str2 in $str1.
Finally, we print the index.

$str1 = "apple banana cherry banana";
$str2 = "banana";
$last_index = rindex($str1, $str2);
print "Last index of substring is: $last_index\n";

Last index of substring is: 17

In this tutorial, we learned How to find the Index of Last Occurrence of Substring in Perl language with well detailed examples.