PHP handles files, reads one line at a line, and deletes useless rows.

Do sitemap.xml today. Find a foreign site, http://www.freesitemapgenerator.com/This can generate 5,000 data, previously found that can only generate 500. However, some of the generated XML tags are useless, 650) this.width=650; "Src=" http://s3.51cto.com/wyfs02/M01/5A/12/ Wkiol1t1rsfzleagaayym92b1fs402.jpg "title=" Loc.png "alt=" Wkiol1t1rsfzleagaayym92b1fs402.jpg "/>

So I think of the PHP processing file, a line of reading, and the useless row deleted.

The code is as follows:

<?php set_time_limit (0), $file =fopen (' Sitemap.xml ', ' R '), while (!feof ($file)) {$line = Fgets ($file);  $arr []= $line; $reg = "/<priority>|<lastmod>|<changefreq>/";    if (!preg_match ($reg, $line)) {$arr []= $line;} if ()//echo $line;} Fclose ($file);//var_dump ($arr), $str = Implode ("\ r \ n", $arr); File_put_contents ("1.xml", $str);

But login a company's again let Change, say is Loc in Can't still have? No. I thought of writing a loop directly, but the time for bitterness began. See http://ningyuqiao.blog.51cto.com/5581274/1616984

Paste the Code bar:

<?php  set_time_limit (0); $xml _str = file_get_ Contents ("1.xml");  $doc  = domdocument::loadxml ($xml _str);    $root  = $ doc->documentelement; $items = $root->getelementsbytagname (' url ');// echo  $length;// die (); for  ($i  = 0;  $i  <  $items->length;  $i + +)  {     // echo  $items->item ($i)->nodevalue .  "\ n";     $url  =   $items->item ($i)->nodevalue;     $reg = "/\?/";     if (Preg_ Match ($reg, $url)) {    echo  $url;     $root->removechild ($items- >item ($i));     }    // sleep (3);} $doc->formatoutput = true; $doc->savexml (), $doc->save ("1.xml"); 

Finally done, the psychology is very happy, share to everyone.

This article is from my blog blog, so be sure to keep this source http://ningyuqiao.blog.51cto.com/5581274/1616986

PHP handles files, reads one line at a line, and deletes useless rows.