如何使用preg_replace替换多行文本 [英] How to replace text over multiple lines using preg_replace

问题描述

在延伸多行的html页面中有以下内容

Hi have the following content within an html page that stretches multiple lines

<div class="c-fc c-bc" id="content">
                <span class="content-heading c-hc">Heading 1 </span><br />
                The Home Page must provide a introduction to the services provided.<br />
                <br />
                <span class="c-sc">Sub Heading</span><br />
                The Home Page must provide a introduction to the services provided.<br />
                <br />
                <span class="c-sc">Sub Heading</span><br /> 
                The Home Page must provide a introduction to the services provided.<br />
            </div>

我需要用自定义文本替换<div class="c-fc c-bc" id="content">和</div>之间的所有内容

I need to replace everthing between <div class="c-fc c-bc" id="content"> and </div> with custom text

我使用以下代码来完成此操作，但是如果它是多行，则它不希望工作，但是如果evertinh在一行中，则它可以工作

I use the following code to accomplish this but it does not want to work if it's multiple lines, but works if evertinh is in one line

$body = file_get_contents('../../templates/'.$val['url']);

$body = preg_replace('/<div class=\"c\-fc c\-bc\" id=\"content\">(.*)<\/div>/','<div class="c-fc c-bc" id="content">abc</div>',$body);

我想念什么吗?

推荐答案

如果这不是HTML，我会告诉您使用

If this weren't HTML, I'd tell you to use the DOTALL modifier to change the meaning of . from 'match everything except new line' to 'match everything':

preg_replace('/(.*)<\/div>/s','abc',$body);

但这是HTML，因此请改用HTML解析器.

But this is HTML, so use an HTML parser instead.

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