How to get href attributefrom html page - php

Question

I have this html code:
<tbody>
<tr class="">
<td align="right" csk="1">1</td>
<td align="left" ><img src="http://static.spref.com/olympics/images/flags/AFG.png" alt="AFG" title="Afghanistan" height=15 width=22> Afghanistan</td>
<td align="right" >1936</td>
<td align="right" >2016</td>
<td align="right" >103</td>
<td align="right" >7</td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" >2</td>
<td align="right" >2</td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
</tr>
I'd like to get inside an array all the href attributes.
I'm trying to use this php code:
<?php
include_once ('/share/Multimedia/simple_html_dom.php');
$url = 'https://www.sports-reference.com/olympics/countries/';
$tagname_tbody = 'tbody';
$tagname_tr = 'td align="left"';
$olympiad = array();
$html = file_get_html($url,true);
foreach($html->find($tagname_tr) as $tag) {
$olympiad[] = trim($tag->innertext);
}
Indeed if I print olympiad array I get something like:
Array
(
[0] => 1
[1] => <img src="http://static.spref.com/olympics/images/flags/AFG.png" alt="AFG" title="Afghanistan" height=15 width=22> Afghanistan
[2] => 1936
[3] => 2016
[4] => 103
[5] => 7
[6] =>
[7] =>
[8] => 2
[9] => 2
[10] =>
Why this behaviour? I'd like to get also the text inside href attribute (in this case Afghanistan), possibly in another array.
I'm not an php code expert so I ask help to you.

Answer 1

You can load the html file like this,this is an exemple you can adapt it:
<?php
include_once ('/share/Multimedia/simple_html_dom.php');
$url = 'https://www.sports-reference.com/olympics/countries/';
$tagname_tbody = 'tbody';
$tagname_tr = 'td align="left"';
$olympiad = array();
$html = file_get_html($url,true);
$doc = new DOMDocument();
$doc->loadHTML( $html);
// example 1:
$elements = $doc->getElementsByTagName('*');
// example 2:
$elements = $doc->getElementsByTagName('html');
// example 3:
$elements = $doc->getElementsByTagName('body');
// example 4:
$elements = $doc->getElementsByTagName('table');
// example 5:
$elements = $doc->getElementsByTagName('div');
I hope it help.

Answer 2

If you want to find all href attributes, I think you can add an a to $tagname_tr = 'td align="left"';
Then you can loop the result, and get the href and the innertext.
As an example, the values are stored in 2 arrays and the html is loaded as a string:
include_once ('/share/Multimedia/simple_html_dom.php');
$source = <<<SOURCE
<tbody>
<tr class="">
<td align="right" csk="1">1</td>
<td align="left" ><img src="http://static.spref.com/olympics/images/flags/AFG.png" alt="AFG" title="Afghanistan" height=15 width=22> Afghanistan</td>
<td align="right" >1936</td>
<td align="right" >2016</td>
<td align="right" >103</td>
<td align="right" >7</td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" >2</td>
<td align="right" >2</td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
<td align="right" ></td>
</tr>
SOURCE;
$url = 'https://www.sports-reference.com/olympics/countries/';
$tagname_tbody = 'tbody';
$tagname_tr = 'td align="left" a';
$olympiad = array();
$elementText = array();
//$html = file_get_html($url,true);
$html = str_get_html($source);
foreach($html->find($tagname_tr) as $tag) {
$olympiad[] = $tag->href;
$elementText[] = $tag->innertext;
}
echo "<pre>";
print_r($olympiad);
print_r($elementText);
Will result in:
Array
(
[0] => /olympics/countries/AFG/
)
Array
(
[0] => Afghanistan
)