我该如何删除html标签

Question

im using php and i wanna know how to delete when <p><a><img></a></p>

from this:

<p>
    <strong>Lorem</strong>
    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
</p>

<p>Lorem ipsum dolor
    <a href="xxxx" target="yyy">sit amet
    </a>, consectetur adipisicing elit, sed do eiusmod
</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
    <img alt="" height="xxx" src="yyy" width="zzz" />
</p>

<p>
    <a href="xxx" target="_blank">
    <img alt="" height="xxx" src="yyy" width="zzz" />
    </a>
</p>

to this:

<p>
    <strong>Lorem</strong>
    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
</p>

<p>Lorem ipsum dolor
    <a href="xxxx" target="yyy">sit amet
    </a>, consectetur adipisicing elit, sed do eiusmod
</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
    <img alt="" height="xxx" src="yyy" width="zzz" />
</p>

<a href="xxx" target="_blank">
 <img alt="" height="xxx" src="yyy" width="zzz" />
</a>

i just wanna delete tag <p></p> when <p><a><img></a></p> i've tried using preg_replace(); function but i cant get it could you please help me, thanks

Answer 1

<?php

$html = <<< EOFHTML
<p>
    <strong>Lorem</strong>
    Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
</p>

<p>Lorem ipsum dolor
    <a href="xxxx" target="yyy">sit amet
    </a>, consectetur adipisicing elit, sed do eiusmod
</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
    <img alt="" height="xxx" src="yyy" width="zzz" />
</p>

<p class="foo">
    <a href="xxx" target="_blank">
    <img alt="" height="xxx" src="yyy" width="zzz" />
    </a>
</p>
EOFHTML;


$html = preg_replace("'(<p[^>]*>)([^<]*<a[^>]*>[^<]*<img[^>]*>[^<]*</a>[^<]*)(</p>)'sim", "$2", $html);


echo $html;