what's wrong in this html dom php code? -


i'm trying code print contents of elements itemprop="price" link don't work, can't figure out why, code:

<?php error_reporting(0); ini_set('display_errors', 0); $doc      = new domdocument(); $allscan  = array(     'http://www.mobile54.co.il/30786',     'http://www.mobile54.co.il/35873',     'http://www.mobile54.co.il/34722' ); $alllinks = array(); $html     = file_get_contents($allscan[0]); $doc->loadhtml($html); $href = $doc->getelementsbytagname('a'); ($j = 0; $j < count($allscan); $j++) {     $html = file_get_contents($allscan[$j]);     $doc->loadhtml($html);     $href = $doc->getelementsbytagname('a');     ($i = 0; $i < $href->length; $i++) {         $link = $href->item($i)->getattribute("href");         $lin  = preg_replace('/\s+/', '', 'http://www.mobile54.co.il' . $link . "<br />");         if (strpos($link, 'items/') && !strpos($link, '#techdetailsaname')) {             if (!in_array($lin, $alllinks)) {                 $alllinks[] = $lin;             }         }     } }  ($i = 0; $i < count($alllinks); $i++) {     echo $alllinks[$i]; } ($i = 0; $i < count($alllinks); $i++) {     $lin  = "$alllinks[$i]";     $html = file_get_contents($lin);     $doc->loadhtml('<?xml encoding="utf-8"?>' . $html);     $span = $doc->getelementsbytagname('span');     ($j = 0; $j < $span->length; $j++) {         $attr = $span->item($j)->getattribute('itemprop');         if ($attr == "price") {             echo $span->item($j)->textcontent . "<br />";         }     } }   ?>

when paste "someurl" insted of $lin work other way doesn't. i've tried $html = file_get_contents($alllinks[$i]); didn't work, don't know why.

i think problem appended <br /> end of url reason. but, there lot of opportunities improve code use of xpath. (note can pass url directly domdocument object.)

first pull <a> elements matching attribute values. urls , search them elements matching itemprop attribute, , text content of them.

<?php $url = "http://www.mobile54.co.il/30786"; $prices = []; $hrefs = []; $combined = [];  $dom = new domdocument; libxml_use_internal_errors(true); $dom->loadhtmlfile($url); $xpath = new domxpath($dom); // <a> elements href containing items/ not #techdetailsaname $nodes = $xpath->query("//a[contains(@href, 'items/') , not(contains(@href, '#techdetailsaname'))]/@href"); foreach ($nodes $node) {     $hrefs[] = trim($node->value); }  // have list of urls foreach ($hrefs $k=>&$href) {     $href = "http://www.mobile54.co.il$href";     $dom->loadhtmlfile($href);     $xpath = new domxpath($dom);     // element itemprop of price     $nodes = $xpath->query("//*[@itemprop='price']");     $prices[$k] = $nodes->item(0)->textcontent; }  // have $urls , $prices, combine them: foreach ($hrefs $k=>$v) {     $combined[$k] = [$hrefs[$k], $prices[$k]]; } print_r($combined);

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