How can the use of filter_var function in PHP improve email address validation compared to regular expressions?

Regular expressions can be complex and error-prone when used for email address validation. The filter_var function in PHP provides a simpler and more reliable way to validate email addresses. By using the FILTER_VALIDATE_EMAIL flag with filter_var, you can easily check if a given string is a valid email address without the need for complex regular expressions. 

$email = "example@example.com";

if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
    echo "Valid email address";
} else {
    echo "Invalid email address";
}

Keywords

filter_var email address validation regular expressions PHP validation

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