Snoopy-based PHP obtains website code almost perfectly

Source: Internet
Author: User

First download Snoopy. class. php from the Internet
Call method:
Copy codeThe Code is as follows:
<? Php
Require 'lib/Snoopy. class. php ';
Require 'lib/WebCrawl. class. php'; // contains the following code:
$ Go = new WebCrawl ('HTTP: // www.baidu.com ');
Echo $ go-> getCharset ();
?>

Copy codeThe Code is as follows:
<? Php
Class WebCrawl
{
Private $ url;
Private $ request;
Public $ charset_arr = array (
'Gb2312 ',
'Utf-8 ',
'Big5 ',
'Gbk ',
'Ascii ',
'Cp936 ',
'Ibm037 ',
'Ibm437 ',
'Ibm500 ',
'Asmo-708 ',
'Dos-100 ',
'Ibm737 ',
'Ibm775 ',
'Ibm850 ',
'Ibm852 ',
'Ibm855 ',
'Ibm857 ',
'Ibm00858 ',
'Ibm861 ',
'Ibm860 ',
'Dos-100 ',
'Ibm863 ',
'Ibm864 ',
'Ibm865 ',
'Cp866 ',
'Ibm869 ',
'Ibm870 ',
'Windows-874 ',
'Cp875 ',
'Shift _ jis ',
'Ks _ c_5601-1987 ',
'Ibm1026 ',
'Ibm01047 ',
'Ibm01047 ',
'Ibm01040 ',
'Ibm01041 ',
'Ibm01042 ',
'Ibm01043 ',
'Ibm01044 ',
'Ibm01045 ',
'Ibm01046 ',
'Ibm01047 ',
'Ibm01048 ',
'Ibm01049 ',
'Utf-16 ',
'Unicodefffe ',
'Windows-1250 ',
'Windows-1251 ',
'Windows-1252 ',
'Windows-1253 ',
'Windows-1254 ',
'Windows-1255 ',
'Windows-1256 ',
'Windows-1257 ',
'Windows-1258 ',
'Job ',
'Macintosh ',
'X-mac-japanese ',
'X-mac-chinesetrad ',
'X-mac-kore ',
'X-mac-arabic ',
'X-mac-hebrew ',
'X-mac-greek ',
'X-mac-cyrillic ',
'X-mac-chinesesimp ',
'X-mac-romanian ',
'X-mac-ukrainian ',
'X-mac-thai ',
'X-mac-ce ',
'X-mac-icelandic ',
'X-mac-turkish ',
'X-mac-croatian ',
'X-chinese-cns ',
'X-cp20001 ',
'X-chinese-eten ',
'X-cp20003 ',
'X-cp20004 ',
'X-cp20005 ',
'X-ia5 ',
'X-ia5-german ',
'X-ia5-swedish ',
'X-ia5-norwegian ',
'US-ascii ',
'X-cp20261 ',
'X-cp20269 ',
'Ibm273 ',
'Ibm277 ',
'Ibm278 ',
'Ibm280 ',
'Ibm284 ',
'Ibm285 ',
'Ibm290 ',
'Ibm420 ',
'Ibm423 ',
'Ibm424 ',
'X-ebcdic-koreanextended ',
'Ibm-thai ',
'Koi8-R ',
'Ibm871 ',
'Ibm880 ',
'Ibm905 ',
'Ibm00924 ',
'X-cp20936 ',
'X-cp20949 ',
'Cp1025 ',
'Koi8-U ',
'Iso-8859-1 ',
'Iso-8859-2 ',
'Iso-8859-3 ',
'Iso-8859-4 ',
'Iso-8859-5 ',
'Iso-8859-6 ',
'Iso-8859-7 ',
'Iso-8859-8 ',
'Iso-8859-9 ',
'Iso-8859-13 ',
'Iso-8859-15 ',
'X-Europa ',
'Iso-8859-8-i ',
'Iso-2022-jput ',
'Csiso2022jp ',
'Iso-2022-jput ',
'Iso-2022-kr ',
'X-cp50227 ',
'Euc-jpc ',
'Euc-cn ',
'Euc-kr ',
'Hz-gb-2312 ',
'Gb18030 ',
'X-iscii-de ',
'X-iscii-be ',
'X-iscii-ta ',
'X-iscii-te ',
'X-iscii-',
'X-iscii-or ',
'X-iscii-Ka ',
'X-iscii-m ',
'X-iscii-gu ',
'X-iscii-pa ',
'Utf-7 ',
'Utf-32 ',
'Utf-32be'
);
Public function _ construct ($ url)
{
$ This-> url = $ url;
}
// Open the website
Private function open ($ url)
{
If ($ this-> request! = Null)
{
If ($ this-> request-> status = 200)
{
Return true;
}
Else
{
Return false;
}
}
Else
{
$ This-> request = new Snoopy ();
$ This-> request-> fetch ($ url );
If ($ this-> request-> status = 200)
{
$ This-> request-> results = strtolower ($ this-> request-> results );
$ Charset = $ this-> getCharset ();
If ($ charset! = "UTF-8 ")
{
If ($ charset = "windows-1252 ")
{
$ This-> request-> results = $ this-> uni_decode ($ this-> request-> results );
}
Else
{
$ This-> request-> results = mb_convert_encoding ($ this-> request-> results, "UTF-8", $ charset );
}
}
Return true;
}
Else
{
Return false;
}
}
}
// Obtain the website title, keywords, and description
Public function getWebinfo ()
{
$ Info = array (
'Title' => '',
'Keyword' => '',
'Desc' => '',
'IP' =>''
);
If (! $ This-> open ($ this-> url) {return $ info; exit ;}
// Print_r ($ this-> request-> results); exit;
Preg_match ('/<title> ([^>] *) <\/title>/si', $ this-> request-> results, $ titlematch );
If (isset ($ titlematch) & is_array ($ titlematch) & count ($ titlematch)> 0)
{
$ Info ['title'] = strip_tags ($ titlematch [1]);
}
Preg_match_all ('/<[\ s] * meta [\ s] * name = "? '.' ([^> "] *)"? [\ S] * '.' content = "? ([^> "] *)"? [\ S] * [\/]? [\ S] *>/si', $ this-> request-> results, $ match );
$ Ft = 0;
Foreach ($ match [1] as $ mt)
{
If ($ mt = "keywords" | $ mt = "description ")
{
$ Ft = 1;
}
}
If ($ ft = 0)
{
Preg_match_all ('/<[\ s] * meta [\ s] * content = "? ([^> "] *)"? [\ S] * name = "? '.' ([^> "] *)"? [\ S] * [\/]? [\ S] *>/si', $ this-> request-> results, $ match );
If (isset ($ match) & is_array ($ match) & count ($ match) = 3)
{
$ Originals = $ match [0];
$ Names = $ match [2];
$ Values = $ match [1];
If (count ($ originals) = count ($ names) & count ($ names) = count ($ values ))
{
$ Administrative AGS = array ();
For ($ I = 0, $ limiti = count ($ names); $ I <$ limiti; $ I ++)
{
$ Mongoags [$ names [$ I] = array (
'Html' => htmlentities ($ originals [$ I]),
'Value' => $ values [$ I]
);
}
}
}
}
Else
{
If (isset ($ match) & is_array ($ match) & count ($ match) = 3)
{
$ Originals = $ match [0];
$ Names = $ match [1];
$ Values = $ match [2];
If (count ($ originals) = count ($ names) & count ($ names) = count ($ values ))
{
$ Administrative AGS = array ();
For ($ I = 0, $ limiti = count ($ names); $ I <$ limiti; $ I ++)
{
$ Mongoags [$ names [$ I] = array (
'Html' => htmlentities ($ originals [$ I]),
'Value' => $ values [$ I]
);
}
}
}
}
$ Result = array (
'Administrative AGS '=> $ administrative AGS
);
If (isset ($ result ['users' AGS] ['keyword'] ['value'])
{
$ Info ['keyword'] = $ result ['tagags '] ['keyword'] ['value'];
}
Else
{
$ Info ['keyword'] = "";
}
If (isset ($ result ['regionams'] ['description'] ['value'])
{
$ Info ['desc'] = $ result ['invalid AGS '] ['description'] ['value'];
}
Else
{
$ Info ['desc'] = "";
}
$ Domain = preg_replace ('/http \: \ // si', ', $ this-> url );
$ Ip = @ gethostbyname ($ domain );
$ Ip_arr = explode (".", $ ip );
If (count ($ ip_arr) = 4)
{
$ Info ['IP'] = $ ip;
}
Return $ info;
}
Public function t ($ string, $ o)
{
For ($ I = 0; $ I <strlen ($ string); $ I ++)
{
If (ord ($ string {$ I}) <128)
Continue;
If (ord ($ string {$ I}) & 224) = 224)
{
// The first byte is determined
$ Char = $ string {++ $ I };
If (ord ($ char) & 128) = 128)
{
// The second byte is passed
$ Char = $ string {++ $ I };
If (ord ($ char) & 128) = 128)
{
$ Encoding = "UTF-8 ";
Break;
}
}
}
If (ord ($ string {$ I}) & 192) = 192)
{
// The first byte is determined
$ Char = $ string {++ $ I };
If (ord ($ char) & 128) = 128)
{
// The second byte is passed
$ Encoding = "GB2312 ";
Break;
}
}
}
Return strtolower ($ encoding );
}
Function uni_decode ($ str, $ code = 'utf-8 '){
$ Str = json_decode (preg_replace_callback ('/& # (\ d {5});/', create_function ('$ dec', 'Return \ '\ u \'. dechex ($ dec [1]); '),' "'. $ str. '"'));
If ($ code! = 'Utf-8') {$ str = iconv ('utf-8', $ code, $ str );}
Return $ str;
}
// Obtain the website code
Public function getCharset ()
{
If (! $ This-> open ($ this-> url) {return false; exit ;}
// First obtain the encoding from html
Preg_match ("/<meta. +? Charset = [^ \ w]? ([-\ W] +)/I ", $ this-> request-> results, $ temp )? Strtolower ($ temp [1]): "";
If ($ temp [1]! = "")
{
If (in_array ($ temp [1], $ this-> charset_arr ))
{
If ($ temp [1] = "gb2312 ")
{
$ Tmp_charset = $ this-> t ($ this-> request-> results, $ temp [1]);
If ($ tmp_charset = $ temp [1])
{
Return $ temp [1];
}
}
Else
{
Return $ temp [1];
}
}
}
If (! Empty ($ this-> request-> headers ))
{
// Obtain the encoding from the header
$ Hstr = strtolower (implode ("|", $ this-> request-> headers ));
Preg_match ("/charset = [^ \ w]? ([-\ W] +)/is ", $ hstr, $ lang )? Strtolower ($ lang [1]): "";
If ($ lang [1]! = "")
{
Return $ lang [1];
}
}
$ Encode_arr = array ("UTF-8", "GB2312", "GBK", "BIG5", "ASCII", "EUC-JP", "Shift_JIS", "CP936 ", ISO-8859-1, JIS, eucjp-win, sjis-win ");
$ Encoded = mb_detect_encoding ($ this-> request-> results, $ encode_arr );
If ($ encoded)
{
Return strtolower ($ encoded );
}
Else
{
Return false;
}
}
}
?>

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.