Regex Repeating Pattern to Capture All HTML Table Column Contents

Question

I am attempting to capture all column contents within HTML tables. I'm very close, but my regex is only capturing the first column of each table. What do I need to do to capture all of the columns?

Here is my regex and HTML: https://regex101.com/r/jA3sS6/1

stackoverflow.com/questions/1732348/… Build a state machine (or use frz3993's method. It's probably a state machine under the hood) — Petro
– Petro, Commented Mar 30, 2016 at 19:36

Community · Accepted Answer · 2017-05-23 11:50:40Z

1

Don't use regular expression, use a Parser instead!

Start with this:

$dom = new DOMDocument();
libxml_use_internal_errors(1);
$dom->loadHTML( $html );
$xpath = new DOMXPath( $dom );

To retrieve all <td>:

foreach( $dom->GetElementsByTagName( 'td' ) as $td )
{
    echo $td->nodeValue . PHP_EOL;
}

To retrieve all <td class="large-text">:

foreach( $xpath->query( '//td[@class="large-text"]' ) as $td )
{
    echo $td->nodeValue . PHP_EOL;
}

Read more about DOMDocument
Read more about DOMXPath
Read why you can't parse [X]HTML with regular expressions

edited May 23, 2017 at 11:50

CommunityBot

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answered Mar 30, 2016 at 19:42

fusion3k

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