Php - Str_replace无法识别空格

Question

I have a very simple problem. I need to remove the whole

<td colspan="3" rowspan="1"> </td>

tag from html only when its empty (its not completely empty though, has some sort of whitespace). Tried to use:

    $html = str_replace("<td colspan=\"3\" rowspan=\"1\"> </td>","",$html);
    $html = str_replace("<td colspan=\"3\" rowspan=\"1\">&nbsp;</td>","",$html);

with no success.

    preg_replace("/<td[^>]*>[\s|&nbsp;]*<\/td>/", '', $html);

didnt work either.

It should be a fairly simple solution, any suggestions?

Answer 1

Maybe this? It will also match multiple spaces if present.

<?php

$result = preg_replace('#<td[^>]*>([\s]|&nbsp;)*<\/td>#i', '', $html);

var_dump($result);