What are the advantages of using strpos() over other methods for checking if a string contains a specific substring in PHP?

When checking if a string contains a specific substring in PHP, using the strpos() function is advantageous because it returns the position of the first occurrence of the substring within the string, allowing for easy validation. This function is efficient and built-in to PHP, making it a reliable and widely-used method for string manipulation tasks.

$string = "Hello, World!";
$substring = "World";

if (strpos($string, $substring) !== false) {
    echo "Substring found in the string.";
} else {
    echo "Substring not found in the string.";
}