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# yp_first

yp_first -- Returns the first key-value pair from the named map.

## Description

`string[] yp_first`(string domain, string map);

yp_first() returns the first key-value pair from the named map in the named domain, otherwise FALSE.

Example 1. Example for the NIS first
    <?php
        $entry = yp_first($domain, "passwd.byname");

        if(!$entry) {
            echo yp_errno() . ": " . yp_err_string();
        }

        $key = key($entry);
        echo "First entry in this map has key " . $key
              . " and value " . $entry[$key];
    ?>

See also: yp_get_default_domain yp_errno and yp_err_string

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