Find and replace all links in a web page using php/javascript

Question

I need to find links in a part of some html code and replace all the links with two different absolute or base domains followed by the link on the page...

I have found a lot of ideas and tried a lot different solutions.. Luck aint on my side on this one.. Please help me out!! Thank you!!

This is my code:

<?php
$url = "http://www.oxfordreference.com/views/SEARCH_RESULTS.html?&q=android";
$raw = file_get_contents($url);
$newlines = array("\t","\n","\r","\x20\x20","\0","\x0B");
$content = str_replace($newlines, "", html_entity_decode($raw));

$start = strpos($content,'<table class="short_results_summary_table">');
$end = strpos($content,'</table>',$start) + 8;
$table = substr($content,$start,$end-$start);

echo "{$table}";

$dom = new DOMDocument();
$dom->loadHTML($table);

$dom->strictErrorChecking = FALSE;

// Get all the links
$links = $dom->getElementsByTagName("a");
foreach($links as $link) {
  $href = $link->getAttribute("href");
  echo "{$href}";

  if (strpos("http://oxfordreference.com", $href) == -1) {
  if (strpos("/views/", $href) == -1) {
     $ref = "http://oxfordreference.com/views/"+$href;
  }
  else 
      $ref = "http://oxfordreference.com"+$href;
    $link->setAttribute("href", $ref);
    echo "{$link->getAttribute("href")}";
  }
}
$table12 = $dom->saveHTML;

preg_match_all("|<tr(.*)</tr>|U",$table12,$rows);

echo "{$rows[0]}";

foreach ($rows[0] as $row){

    if ((strpos($row,'<th')===false)){

        preg_match_all("|<td(.*)</td>|U",$row,$cells);       
        echo "{$cells}";
    }

}
?>

When i run this code i get htmlParseEntityRef: expecting ';' warning for the line where i load the html

Give us some sample HTML, and tell us how you want it to become. Show us your coding efforts! Do you want to do it in PHP or JavaScript? — Shef, Jul 26 '11 at 19:16
when you say "Luck aint on my side on this one" does that mean you have found x and attempted y and haven't got it working? If so please show your attempt and we can go from there — Andreas Wong, Jul 26 '11 at 19:17
removed the javascript tag as you are doing this server side. — scrappedcola, Jul 26 '11 at 19:44
The strpos in your script is wrong. It's strpos ( haystack, needle, [position ). — Micromega, May 27 '12 at 19:14

score 5 · Accepted Answer · answered Jul 26 '11 at 19:16

5

var links = document.getElementsByTagName("a"); will get you all the links. And this will loop through them:

 for(var i = 0; i < links.length; i++)
    {
        links[i].href = "newURLHERE";
    }

answered Jul 26 '11 at 19:16

scrappedcola

10,423
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score 2 · Answer 2 · edited May 23 '17 at 11:55

2

You should use jQuery - it is excellent for link replacement. Rather than explaining it here. Please look at this answer.

How to change the href for a hyperlink using jQuery

edited May 23 '17 at 11:55

Community

1
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answered Jul 26 '11 at 19:21

Boz

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score 2 · Answer 3 · answered Jul 26 '11 at 19:22

I recommend scrappedcola's answer, but if you dont want to do it on client side you can use regex to replace:

ob_start();
//your HTML

//end of the page
$body=ob_get_clean();
preg_replace("/<a[^>]*href=(\"[^\"]*\")/", "NewURL", $body);
echo $body;

You can use referencing (\$1) or callback version to modify output as you like.

Find and replace all links in a web page using php/javascript

3 Answers3