Get the last character of a string in PHP

Guide on how to use PHP to get the last character of a string. This PHP code helps in easily retrieving the final character of a text string in string manipulation operations.

<?php
function getLastCharacter($string) {
    // Check if the string is not empty
    if (strlen($string) > 0) {
        // Get the last character of the string
        return $string[strlen($string) - 1];
    } else {
        return null; // Return null if the string is empty
    }
}

// Example usage
$inputString = "Hello, world!";
$lastChar = getLastCharacter($inputString);
echo "The last character of the string is: " . $lastChar;
?>

Detailed explanation:

1. Check if the string is not empty:

   • strlen($string) > 0: Checks if the length of the string is greater than 0. If the string is empty, the function returns null.

2. Get the last character of the string:

   • $string[strlen($string) - 1]: Retrieves the last character of the string by indexing the position of the last character, which is the length of the string minus 1.

3. Return the last character:

   • return $string[strlen($string) - 1]: Returns the last character if the string is not empty.

4. Example usage:

   • $inputString = "Hello, world!";: Defines the input string.
   • echo "The last character of the string is: " . $lastChar;: Displays the last character of the string.

PHP Version:

This code can run on PHP versions from 5.0 and above.