How can PHP beginners effectively search for solutions to common coding problems, such as email validation?

To validate an email address in PHP, beginners can use a combination of regular expressions and built-in functions like filter_var. Regular expressions can help check if the email format is correct, while filter_var can verify if the email is valid according to RFC standards.

$email = "example@example.com";

if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Email is valid.";
} else {
    echo "Email is invalid.";
}