Validates a column name parameter.

Handles an HTTP redirect and follows it if appropriate.

Determines if a specified string represents an IP address or not.

Deprecated HTTP Transport method which used fsockopen.

Core class used to integrate PHP Streams as an HTTP transport.

Send a HTTP request to a URI using PHP Streams.

Determines whether this class can be used for retrieving a URL.

Verifies the received SSL certificate against its Common Names and subjectAltName fields.

Return the appropriate alias for the given meta type if applicable.

Retrieve stopwords used when parsing search terms.