How can the combination of "http" be excluded from field validation regex in PHP?

To exclude the combination of "http" from field validation regex in PHP, you can use negative lookahead assertion in your regular expression. This will allow you to match any URL except those containing "http". Here is a PHP code snippet that demonstrates this: 

// Input string to validate
$input = "https://www.example.com";

// Regular expression with negative lookahead assertion to exclude "http"
$regex = '/^(?!.*http).*$/';

// Perform the validation
if (preg_match($regex, $input)) {
    echo "Validation passed. URL does not contain 'http'.";
} else {
    echo "Validation failed. URL contains 'http'.";
}

Keywords

PHP field validation regex exclusion http

Related Questions