<?php
	
	function random_array_value($array) {
		$keys = array_keys($array);
		$keys_count = (count($keys) - 1);
		$random = rand(0, $keys_count);
		$random_key = $keys[$random];
		
		unset($random, $keys_count, $keys);
		
		return $array[$random_key];
	}
	
	$array = array(
		'127.0.0.1',
		'ip' => '127.0.0.2',
		'127.0.0.3',
		127 => '127.0.0.4'
	);
	
	print(random_array_value($array));