facebook_email.js

var run = 0;
var mails = {}
total = 3000; //滚动次数，可以自己根据情况定义

function getEmails (cont) {
	var friendbutton=cont.getElementsByClassName("_ohe");
	for(var i=0; i<friendbutton.length; i++) {
		var link = friendbutton[i].getAttribute("href");

		if(link && link.substr(0,25)=="https://www.facebook.com/") {
			var parser = document.createElement('a');
			parser.href = link;
			if (parser.pathname) {
				path = parser.pathname.substr(1);
				if (path == "profile.php") {
					search = parser.search.substr(1);
					var args = search.split('&');
					email = args[0].split('=')[1] + "@facebook.com\n";
				} else {
					email = parser.pathname.substr(1) + "@facebook.com\n";
				}
				if (mails[email] > 0) {
					continue;
				}
				mails[email] = 1;
				console.log(email);
			}
		}
	}
}

function moreScroll() {
	var text="";
	containerID = "BrowseResultsContainer"
	if (run > 0) {
		containerID = "fbBrowseScrollingPagerContainer" + (run-1);
	}
	var cont = document.getElementById(containerID);
	if (cont) {
		run++;
		var id = run - 2;
		if (id >= 0) {
			setTimeout(function() {
				containerID = "fbBrowseScrollingPagerContainer" + (id);
				var delcont = document.getElementById(containerID);
				if (delcont) {
				getEmails(delcont);
				delcont.parentNode.removeChild(delcont);
				}
				window.scrollTo(0, document.body.scrollHeight - 10);
			}, 1000);
		}
	} else {
		console.log("# " + containerID);
	}
	if (run < total) {
		window.scrollTo(0, document.body.scrollHeight + 10);
	}
	setTimeout(moreScroll, 2000);
}//1000为间隔时间，也可以根据情况定义

moreScroll();

facebook_fans_by_plugin.php

<?php
// 
function fetch_fb_fans($fanpage_name, $no_of_retries = 10, $pause = 100000 /* 500ms */){
    $ret = array();
    // get page info from graph
    $fanpage_data = json_decode(file_get_contents('http://graph.facebook.com/' . $fanpage_name), true);
    if(empty($fanpage_data['id'])){
        // invalid fanpage name
        return $ret;
    }
    $matches = array();
    $url = 'http://www.facebook.com/plugins/fan.php?connections=100&id=' . $fanpage_data['id'];
    echo $url . "\n";
    for($a = 0; $a < $no_of_retries; $a++){
        $randIP = "".mt_rand(0,255).".".mt_rand(0,255).".".mt_rand(0,255).".".mt_rand(0,255);
        $context = stream_context_create(array('http' => array('header' => 'User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0\nX-Forwarded-For:' . $randIP)));

        $like_html = file_get_contents($url, false, $context);
        preg_match_all('{href="https?://www\.facebook\.com/([a-zA-Z0-9._-]+)" data-jsid="anchor" target="_blank"}', $like_html, $matches);
        if(empty($matches[1])){
            // failed to fetch any fans - convert returning array, cause it might be not empty
            // return array_keys($ret);
            $pause = $pause * 2;
            echo "# failed: {$pause}"; 
        }else{
            $all = ($matches[1]);
            foreach ($all as $key => $value) {
                if (isset($ret[$value])) {
                    echo ".\n";
                    continue;
                } else {
                    $ret[$value] = 1;
                    echo "{$value}@facebook.com\n";
                }
            }
            // merge profiles as array keys so they will stay unique
            // $ret = array_merge($ret, array_flip($matches[1]));
        }
        // don't get banned as flooder
        usleep($pause);
    }
    return array_keys($ret);
}

print_r(fetch_fb_fans('Lamoda.ru', 10000));