res/php/intl/locale.php
public function lookup($langtag, $locale, $canonicalize = false, $default = NULL, $langtag, $locale, $canonicalize = false, $default = NULL)
    {
    }
public function lookup($langtag, $locale, $canonicalize = false, $default = NULL, $langtag, $locale, $canonicalize = false, $default = NULL)
    {
    }
public function lookup ( $ langtag , $ locale , $ canonicalize = false , $ default = NULL , $ langtag , $ locale , $ canonicalize = false , $ default = NULL ) { }
Searches the language tag list for the best match to the language

@param array $langtag
@param string $locale
@param bool $canonicalize
@param string $default
@param array $langtag
@param string $locale
@param bool $canonicalize
@param string $default

@return string The closest matching language tag or default value.
Searches the language tag list for the best match to the language