Quick (and probably imperfect) regex for removing all attributes form HTML

remove-html-attributes.php

<?php

$string = '<table border="2" cellpadding="5" cellspacing="2">
    <tr>
        <th style="width: 50%;" align="center">Header 1</th>
        <th align="center">Header 2</th>
    </tr>
    <tr>
        <td class="odd">Content 1</td>
        <td class="even" style="text-align: left;">Content 2</td>
    </tr>
    <tr>
        <td class="odd">Content 3</td>
        <td class="even">Content 4</td>
    </tr>
</table>';

echo preg_replace('/<([a-zA-Z]+)[^>]*>/', '<$1>', $string);

/*

Would output:

<table>
    <tr>
        <th>Header 1</th>
        <th>Header 2</th>
    </tr>
    <tr>
        <td>Content 1</td>
        <td>Content 2</td>
    </tr>
    <tr>
        <td>Content 3</td>
        <td>Content 4</td>
    </tr>
</table>

*/