How to find a particular value from a string - php

Question

I have a string (not xml )
<headername>X-Mailer-Recptid</headername>
<headervalue>15772348</headervalue>
</header>
from this, i need to get the value 15772348, that is the value of headervalue. How is possible?

Answer 1

Use PHP DOM and traverse the headervalue tag using getElementsByTagName():
<?php
$doc = new DOMDocument;
#$doc->loadHTML('<headername>X-Mailer-Recptid</headername><headervalue>15772348</headervalue></header>');
$items = $doc->getElementsByTagName('headervalue');
for ($i = 0; $i < $items->length; $i++) {
echo $items->item($i)->nodeValue . "\n";
}
?>
This gives the following output:
15772348
[EDIT]: Code updated to suppress non-HTML warning about invalid headername and headervalue tags as they are not really HTML tags. Also, if you try to load it as XML, it totally fails to load.

Answer 2

This looks XML-like to me. Anyway, if you don't want to parse the string as XML (which might be a good idea), you could try something like this:
<?
$str = "<headervalue>15772348</headervalue>";
preg_match("/<headervalue\>([0-9]+)<\/headervalue>/", $str, $matches);
print_r($matches);
?>

Answer 3

// find string short way
function my_url_search($se_action_data)
{
// $regex = '/https?\:\/\/[^\" ]+/i';
$regex="/<headervalue\>([0-9]+)<\/headervalue>/"
preg_match_all($regex, $se_action_data, $matches);
$get_url=array_reverse($matches[0]);
return array_unique($get_url);
}
echo my_url_search($se_action_data)

Answer 4

<?php
$html = new simple_html_dom();
$html = str_get_html("<headername>X-Mailer-Recptid</headername>headervalue>15772348</headervalue></header>"); // Use Html dom here
$get_value=$html->find("headervalue", 0)->plaintext;
echo $get_value;
?>
http://simplehtmldom.sourceforge.net/manual.htm#section_find