regex - php, strpos extract digit from string -

-

i have huge html code scan. until have been using preg_match_all extract desired parts it. problem start was extremely cpu time consuming. decided use other method extraction. read in articles preg_match can compared in performance strpos. claim strpos beats regex scanner 20 times in efficiency. thought try method dont know how started.

lets have html string:

<li id="ncc-nba-16451" class="che10"><a href="/en/star">23 - star</a></li> <li id="ncd-bbt-5674" class="che10"><a href="/en/moon">54 - moon</a></li> <li id="ertw-cxda-c6543" class="che10"><a href="/en/sun">34,780 - sun</a></li>

i want extract number each id , text (letters) content of a tags. preg_match_all scan:

'/<li.*?id=".*?([\d]+)".*?<a.*?>.*?([\w]+)<\/a>/s'

here can see result: link

now if want replace method strpos functionality how approach like? understand strpos returns index of start match took place. how can use to:

  • get possible matches, not one
  • extract numbers or text desired place in string

thank , tips ;)

using dom 

$html = ' <html> <head></head> <body> <li id="ncc-nba-16451" class="che10"><a href="/en/star">23 - star</a></li> <li id="ncd-bbt-5674" class="che10"><a href="/en/moon">54 - moon</a></li> <li id="ertw-cxda-c6543" class="che10"><a href="/en/sun">34,780 - sun</a></li> </body> </html>';   $dom_document = new domdocument();  $dom_document->loadhtml($html);  $rootelement = $dom_document->documentelement;  $getid = $rootelement->getelementsbytagname('li'); $res = []; foreach($getid $tag) {    $data = explode('-',$tag->getattribute('id'));    $res['li_id'][] = end($data); } $getnode = $rootelement->getelementsbytagname('a'); foreach($getnode $tag) {    $res['a_node'][] = $tag->parentnode->textcontent; } print_r($res);

output :

array (     [li_id] => array         (             [0] => 16451             [1] => 5674             [2] => c6543         )      [a_node] => array         (             [0] => 23 - star             [1] => 54 - moon             [2] => 34,780 - sun         )  )

Comments

Post a Comment

Popular posts from this blog

html - Firefox flex bug applied to buttons? -

-
i'm trying apply flex button on firefox i'm having problem on chrome doesn't happens. this css: .button { display: inline-flex; align-items: center; } as can see in fiddle, "caret" word moved new line, happens if element <button> tag, <div> works expected. http://codepen.io/anon/pen/xblmgx is firefox bug or there css i'm missing? nevermind, looks "mr firefox" doesn't idea... <button> not implementable (by browsers) in pure css, bit of black box, perspective of css. means don't react in same way e.g. <div> would. this isn't specific flexbox -- e.g. don't render scrollbars if put "overflow:scroll" on button, , don't render table if put "display:table" on it. stepping further, isn't specific <button> . consider <fieldset> , <table> have special rendering behavior: data:text/html,<fieldset style="d
Read more

html - Missing border-right in select on Firefox -

-
Image
when put select div width , padding-left, options have no border on right. more, happend if select have width 118px , parent have 15px of padding left! have idea, going on? my code: <!doctype html> <html> <head lang="en"> </head> <body> <div style="width: 1000px; padding-left: 15px;"> <select style="width: 118px;"> <option>a</option> <option>b</option> <option>c</option> </select> </div> </body> </html> and result: here plunker: click it happend on firefox on windows. tested on 40.0.2 version -webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; box-sizing: border-box; source: https://stackoverflow.com/a/11390432/4431269 source of problem: https://bugzilla.mozilla.org/show_bug.cgi?id=924068 and use of google ! edit: (source of problem, explained) after rea
Read more

c# - two queries in same method -

-
i trying execute 2 queries in same method gives me exception. can red of exception declaring new command there way use same command? string id="hi"; connection.open(); oledbcommand command1 = new oledbcommand(); command1.connection = connection; string query1 = "select * products category='" + combobox1.text + "' , subcategory = '" + combobox2.text + "' , sizes='" + combobox3.text + "'"; command1.commandtext = query1; oledbdatareader reader = command1.executereader(); while (reader.read()) { id = reader[0].tostring(); } textbox1.text = id; string query = "insert category_in (category_id,amount,amount_in) values ('"+ id+"' ,500,300)"; command1.commandtext = query; command1.executenonquery(); messagebox.show("saved"); connection.close();
Read more