Php self-writing function code obtains the keyword to hyperlink

Retrieving keywords based on weights removes hyperlinks in articles. simple and concise 1. get keywords based on weights

The code is as follows:
Function getkey ($ contents ){
$ Rows = strip_tags ($ contents );
$ Arr = array ('','', "\ s", "\ r \ n", "\ n", "\ r", "\ t ", ">", "", "");
$ Qc_rows = str_replace ($ arr, '', $ rows );
If (strlen ($ qc_rows) & gt; 2400 ){
$ Qc_rows = substr ($ qc_rows, '0', '123 ');
}
$ Data = @ implode ('', file (" http://keyword.discuz.com/related_kw.html? Title = $ contents & ics = gbk & ocs = gbk "));
Preg_match_all ("/ (. *) A \ [(. *) \] (. *)> <\/kw>/", $ data, $ out, PREG_SET_ORDER );
For ($ I = 0; $ I <5; $ I ++ ){
$ Key = $ key. $ out [$ I] [2];
If ($ out [$ I] [2]) $ key = $ key .",";
}
Return $ key;
}
// $ Contents the article for you to get the keyword


2. removing hyperlinks in the article is simple and concise

The code is as follows:
Function get_new_content ($ content ){
Include ("../simple_html_dom.php ");
$ Html = str_get_html ($ content );
$ A_href = $ html-> find ('A ');
Foreach ($ a_href as $ link ){
$ Text = $ link-> plaintext; // text in the link;
$ Link-> outertext = $ text;
}
$ Now_content = $ html-> save ();
}
// Preg_replace ("/(.*?) <\/A>/I "," \ $ {1} ", $ content); you can also use regular expressions.