In PHP, how do I index strings with examples?

In PHP, you can index strings using square brackets or the substr() function. Indexing allows you to access specific characters within a string based on their position, starting from 0 for the first character.

Example of Indexing Strings in PHP


        <?php
        $string = "Hello, World!";
        $firstCharacter = $string[0]; // H
        $secondCharacter = $string[1]; // e
        echo $firstCharacter; // Outputs: H
        echo $secondCharacter; // Outputs: e

        // Using substr() function
        $extractedSubstring = substr($string, 7, 5); // World
        echo $extractedSubstring; // Outputs: World
        ?>