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Atrast URLi Dokumentaa ar DOM paliidziibu


Bunkertor 7
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Sveiki,

 

Meeginu uzskriptot skriptu, kas paraadiitu, vai attieciigaa HTML dokumentaa atrodas links uz kaadu konkreetu resursu. Piemeeram, skripts aiziet uz vilks.lv un paarbauda, vai kaut kur kodaa ir links uz lacis.lv

Es saakumaa domaaju, ka to var izdariit ar $xpath->query paliidziibu, bet jo vairaak manuaalus lasu, jo paarliecinos, ka laikam nevar.

 

Ideja bija kaut kaa taa:

 

<?php
$doc = DOMDocument::loadHTMLFile('http://www.whatever');

$xpath = new DOMXPath($doc);
$links = $xpath->query('//a/@href/MyKeyWordInTheURL');
#$urlz = array();
foreach ($links as $link)
{

#    $urlz[] = $link->value;
echo $link->value . "\n";
echo "Linka Teksts:" . $link->nodeValue . "\n";
}

?>

 

Varbuut labaak meeginaat ar Preg Match?

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if (strpos(strip_tags(file_get_contents('http://vilks.lv'),'<a>'), 'href="http://lacis.lv') !== false) {
/// oh yeahhhhh
}

 

Pret to display:none tāpat neko neizdarīs. To jau var ielikt cssā.

Edited by indoom
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Piemērs ar simplexml. Noteikti var izdarīt arī ar DOM query, bet negribas tagad testēt.

 

<?php

$doc = DOMDocument::loadHTMLFile('http://www.whatever');

$xpath = new DOMXPath($doc);
$xml = simplexml_import_dom($doc);
$links = $xml->xpath("//a[@href='http://vilks.lv/']");
var_dump($links);
foreach($links as $link){
print $link['href']."\n";
}

 

Es gan to href apstrādātu ar PHP, t.i., $xml->xpath("//a"); un tad tajā ciklā parsētu href. Mazums tur kaut-kādi www. vai path galā... XPath, protams, ir arī "contains" - check w3schools.

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