How to implement search engine Class with PHP

Editor to share with you how to achieve PHP search engine class, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to understand it!

PHP search engine class 1. Class file:

Class grabble {

Var $filename

Var $html

Var $urls = array (); / / url history

Var $url

Var $url_1

Function grabble () {

Set_time_limit (3600)

}

Function set ($_ filename) {

$this- > filename = $_ filename

Array_push ($this- > url, $_ filename)

} / / end.set

Function set_url ($_ url) {

Eregi ('(^ http://.*[^/]).*', $_ url, $array)

This- > url = $array [1]. "/"

Eregi ('(^ http://.*[^/]).*', $_ url, $array)

/ / print_r ($array)

$this- > url_1 = $array [1]

}

Function get () {

} / / end.get

Function get_html ($_ filename=null) {

$this- > filename = $_ filename

$this- > html = @ implode ('', file ($_ filename))

Return $this- > html

} / / end.get_html

Function get_title ($_ str=null) {

Preg_match_all ("/ (. *)

/ Uis ", $_ str, $matches)

Return $matches [1] [0]

} / / end.get_title

Function get_img ($_ str=null) {

Preg_match_all ("/] *\ s*src\ sgiving =

\ s* ([\ "]?) ([^\" >\ s] *)\ 1\ s* [^ >] * > / I "

$_ str, $arr)

Print_r ($arr [2])

}

Function get_link ($_ str=null) {

Preg_match_all ("/