PHP Manual
YP/NIS 函数
Returns the first key-value pair from the named map

yp_first

(PHP 4, PHP 5 < 5.1.0)

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

说明

yp_first ( string $domain , string $map ) : array

Gets the first key-value pair from the named map in the named domain.

参数

domain: The NIS domain name.
map: The NIS map.

返回值

Returns the first key-value pair as an array on success, or FALSE on errors.

范例

Example #1 Example for the NIS first

 <?php
$entry = yp_first($domain, "passwd.byname");

$key = key($entry);
$value = $entry[$key];

echo "First entry in this map has key " . $key . " and value " . $value;
?>

参见

yp_next() - Returns the next key-value pair in the named map
yp_get_default_domain() - Fetches the machine's default NIS domain

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