PHP：preg_replace() - 需要替换textNode字符串

Question

我遇到以下问题，并且我不太擅长正则表达式，所以请问有人可以帮助我吗？

<div class="bulletPoints">
    <div>
        <a href="#autoGeneratedId0" title="test_f01"><img src="../images/test_f01.jpg" alt="test_f01"/>1</a>
        <a href="#autoGeneratedId1" title="test_f02"><img src="../images/test_f02.jpg" alt="test_f02"/>2</a>
        <a href="#autoGeneratedId2" title="test_f03"><img src="../images/test_f03.jpg" alt="test_f03"/>3</a>
        <a href="#autoGeneratedId3" title="test_f04"><img src="../images/test_f04.jpg" alt="test_f04"/>4</a>
        <a href="#autoGeneratedId4" title="test_f05"><img src="../images/test_f05.jpg" alt="test_f05"/>5</a>
        <a href="#autoGeneratedId5" title="test_f06"><img src="../images/test_f06.jpg" alt="test_f06"/>6</a>
        <a href="#autoGeneratedId6" title="test_f07"><img src="../images/test_f07.jpg" alt="test_f07"/>7</a>
        <a href="#autoGeneratedId7" title="test_f08"><img src="../images/test_f08.jpg" alt="test_f08"/>8</a>
        <a href="#autoGeneratedId8" title="test_f09"><img src="../images/test_f09.jpg" alt="test_f09"/>9</a>
        <a href="#autoGeneratedId9" title="test_f09"><img src="../images/test_f09.jpg" alt="test_f09"/>10</a>
        <a href="#autoGeneratedId10" title="test_f09"><img src="../images/test_f09.jpg" alt="test_f09"/>11</a>
        <!-- and so on -->
    </div>
</div>

我需要替换每个锚标记内的图像标记后面的纯文本字符串。该字符串始终是 0 - 99 之间的数字。锚标记的 ID 和标题属性也是自动生成的。我不知道如何只获取所有标签上的数字。我需要将其替换为空字符串 ''。有人可以帮助我并解释我该怎么做吗？

非常非常感谢！！

Answer 1

尝试

preg_replace('/(<img[^>]+>)(\d+)/', "\\1", $text);

此操作将仅用图像标签替换图像标签+图像标签后的文本。

Answer 2

您可以将 />[0-9]{,2}< 替换为 /><

test with sed:

echo 'yourtext'|sed -r 's#/>[0-9]{,2}<#/><#g'

输出：

<div class="bulletPoints">
    <div>
        <a href="#autoGeneratedId0" title="test_f01"><img src="../images/test_f01.jpg" alt="test_f01"/></a>
        <a href="#autoGeneratedId1" title="test_f02"><img src="../images/test_f02.jpg" alt="test_f02"/></a>
        <a href="#autoGeneratedId2" title="test_f03"><img src="../images/test_f03.jpg" alt="test_f03"/></a>
        <a href="#autoGeneratedId3" title="test_f04"><img src="../images/test_f04.jpg" alt="test_f04"/></a>
        <a href="#autoGeneratedId4" title="test_f05"><img src="../images/test_f05.jpg" alt="test_f05"/></a>
        <a href="#autoGeneratedId5" title="test_f06"><img src="../images/test_f06.jpg" alt="test_f06"/></a>
        <a href="#autoGeneratedId6" title="test_f07"><img src="../images/test_f07.jpg" alt="test_f07"/></a>
        <a href="#autoGeneratedId7" title="test_f08"><img src="../images/test_f08.jpg" alt="test_f08"/></a>
        <a href="#autoGeneratedId8" title="test_f09"><img src="../images/test_f09.jpg" alt="test_f09"/></a>
        <a href="#autoGeneratedId9" title="test_f09"><img src="../images/test_f09.jpg" alt="test_f09"/></a>
        <a href="#autoGeneratedId10" title="test_f09"><img src="../images/test_f09.jpg" alt="test_f09"/></a>
        <!-- and so on -->
    </div>
</div>

Answer 3

preg_replace('|>[0-9]{1,2}<|','><',$html);