Looks for a META tag with an "http-equiv" attribute whose value
is one of ("x-xrds-location", "x-yadis-location"), ignoring
case. If such a META tag is found, its "content" attribute
value is returned.
public getHTTPEquiv ( string $html_string ) : mixed | ||
$html_string | string | An HTML document in string format |
return | mixed | $content The "content" attribute value of the META tag, if found, or null if no such tag was found. |