Scraping some data using PHP - php

Question

I like to have update of some selected users score from https://location.services.mozilla.com/leaders For that i want to scrape their data using the id as you see for the first user <a id="g#v" href="#g#v">g#v</a>
I want to have his data using the id on that anchor. I have wrote the attached code but, couldn't succeed. Best if i could create an array like $names=array("g#v","elly","elkos"," grack"); and get the scores of all of them, so if i increase the number of names, i can have everyone's score. I was trying for a single user though:
<?php
$html = file_get_contents('https://location.services.mozilla.com/leaders');
$pokemon_doc = new DOMDocument();
libxml_use_internal_errors(TRUE);
if(!empty($html)){
$pokemon_doc->loadHTML($html);
libxml_clear_errors();
$pokemon_xpath = new DOMXPath($pokemon_doc);
$pokemon_row = $pokemon_xpath->query('//a[#id="g#v"]');
if($pokemon_row->length > 0){
foreach($pokemon_row as $row){
$name = $row->nodeValue;
$scores = $pokemon_xpath->query('//.td.tr/td[#class="text-right"]', $row);
foreach($scores as $score){
$lead = $score->nodeValue;
}
echo $name . ": ". $lead;
}
}
}
?>

Answer 1

I tweaked your scraping code to display all users and their score:
<?php
$html = file_get_contents('https://location.services.mozilla.com/leaders');
$pokemon_doc = new DOMDocument();
libxml_use_internal_errors(TRUE);
if(!empty($html)){
$pokemon_doc->loadHTML($html);
libxml_clear_errors();
$pokemon_xpath = new DOMXPath($pokemon_doc);
$pokemon_row = $pokemon_xpath->query('//tr');
if($pokemon_row->length > 0){
// Get each tr
foreach($pokemon_row as $row){
// Get each td in the tr group
$tds = $row->childNodes;
foreach($tds as $td){
// Filter out empty nodes
if(trim($td->nodeValue, " \n\r\t\0\xC2\xA0") !== "") {
$name = $td->nodeValue;
echo $name . " ";
}
}
echo "<br>" . PHP_EOL;
}
}
}
?>
This will print out:
Rank User Points
1. g#v 18444343
2. elly 4458330
3. elkos 4452607
4. grack 2769789
5. sonickydon 2707133
6. SDBoyd 2636721
...
If you want to search for a single user, then just replace the query line with this:
$pokemon_row = $pokemon_xpath->query('//tr[td/a[#id="g#v"]]');
which will print:
1. g#v 18444343
Hope that helps.