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Snoopy:一个非常强大的PHP采集类

Jun 06, 2016 pm 03:10 PM

Snoopy是一个php类,用来模拟浏览器的功能,可以获取网页内容,发送表单。 1抓取网页的内容 fetch 2 抓取网页的文本内容 (去除HTML标签) fetchtext 3抓取网页的链接,表单 fetchlinks fetchform 4 支持代理主机 5支持基本的用户名/密码验证 6 支持设置 user_agent, referer(来路), cookies 和 header content(头文件) 7支持浏览器重定向,并能控制重定向深度

Snoopy:一个非常强大的PHP采集类

,下面是详细介绍Snoopy.class.php源文件的内容。

Snoopy是一个php类,用来模拟浏览器的功能,可以获取网页内容,发送表单。

Snoopy的一些特点:

1抓取网页的内容 fetch
2 抓取网页的文本内容 (去除HTML标签) fetchtext
3抓取网页的链接,表单 fetchlinks fetchform
4 支持代理主机
5支持基本的用户名/密码验证
6 支持设置 user_agent, referer(来路), cookies 和 header content(头文件)
7支持浏览器重定向,并能控制重定向深度
8能把网页中的链接扩展成高质量的url(默认)
9提交数据并且获取返回值
10 支持跟踪HTML框架
11支持重定向的时候传递cookies
要求php4以上就可以了 由于本身是php一个类 无需扩支持 服务器不支持curl时候的最好选择,

类方法:

fetch($URI)
———–

这是为了抓取网页的内容而使用的方法。
$URI参数是被抓取网页的URL地址。
抓取的结果被存储在 $this->results 中。
如果你正在抓取的是一个框架,Snoopy将会将每个框架追踪后存入数组中,然后存入 $this->results。

fetchtext($URI)
—————

本方法类似于fetch(),唯一不同的就是本方法会去除HTML标签和其他的无关数据,只返回网页中的文字内容。

fetchform($URI)
—————

本方法类似于fetch(),唯一不同的就是本方法会去除HTML标签和其他的无关数据,只返回网页中表单内容(form)。

fetchlinks($URI)
—————-

本方法类似于fetch(),唯一不同的就是本方法会去除HTML标签和其他的无关数据,只返回网页中链接(link)。
默认情况下,相对链接将自动补全,转换成完整的URL。

submit($URI,$formvars)
———————-

本方法向$URL指定的链接地址发送确认表单。$formvars是一个存储表单参数的数组。

submittext($URI,$formvars)
————————–

本方法类似于submit(),唯一不同的就是本方法会去除HTML标签和其他的无关数据,只返回登陆后网页中的文字内容。

submitlinks($URI)
—————-

本方法类似于submit(),唯一不同的就是本方法会去除HTML标签和其他的无关数据,只返回网页中链接(link)。
默认情况下,相对链接将自动补全,转换成完整的URL。

类属性: (缺省值在括号里)

$host 连接的主机
$port 连接的端口
$proxy_host 使用的代理主机,如果有的话
$proxy_port 使用的代理主机端口,如果有的话
$agent 用户代理伪装 (Snoopy v0.1)
$referer 来路信息,如果有的话
$cookies cookies, 如果有的话
$rawheaders 其他的头信息, 如果有的

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