php - How to manipulate strings in php

Question

I have a question regarding the DomDocument

In my previous questoin.. How to detect certain characters and wrap them with another string?

I can get the assign table to the string. However, there are some table cell that contains

<input type='text' value='input value'/>

so it's like

<td><input type='text' value='input value'/></td>

I want to remove the input tag but still display the 'input value' in my cell as there is no input box. I need it because I need to display my string in my email.

I can't really do it in the client side.

Is there anyway to do this? Thanks.

Answer 1

DomDocument您可以使用和 适当的提取输入值XPath：

$html = "<td><input type='text' value='input value'/></td>";
$dom = new DOMDocument();
$dom->loadHTML($html);

$xpath = new DOMXPath($dom);

$inputtags = $xpath->query('//input[@type="text"]');
foreach ($inputtags as $tag) {
    $value = $tag->getAttribute('value');
}

输出：

input value

注意：此处使用的 XPath 仅用于演示目的。可能有多个输入类型为 as 的元素，text使用更可靠的 XPath 可能是个好主意。但是，这应该可以帮助您入门。

演示！