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phpregexiframepreg-match

Select part of the URL inside an iframe tag

I need to capture an ID that is part of a URL that is inside an iframe tag. I know this can be done with regex but I'm not very good at it, I made a few attempts but could not get a result, iframe would be this (ID may vary):

<iframe src="https://www.example.com/embed/ph57d6z9fa1349b" frameborder="0" height="481" width="608" scrolling="no"></iframe>

And the ID I would like to get would be this:

ph57d6z9fa1349b
Solution

  • You can split the string with the regex.

    $re = '/\<iframe[^\>]+src\="(.+?)\/([A-Za-z0-9]+)"/';
$str = '<iframe src="https://www.example.com/embed/ph57d6z9fa1349b" frameborder="0" height="481" width="608" scrolling="no"></iframe>';

preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);

// Print the entire match result
var_dump($matches);

    If you want to list id codes (like 'ph57d6z9fa1349b') then you can do this:

    <?php
$re = '/\<iframe[^\>]+src\="(.+?)\/([A-Za-z0-9]+)"/';
$str = '<iframe src="https://www.example.com/embed/ph57d6z9fa1349b" frameborder="0" height="481" width="608" scrolling="no"></iframe>';

preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);

foreach ($matches as $match) {
    $id = $match[2];    // The required id code
    echo $id;           // Echo it
}
?>