如何使用正则表达式从HTML获取字符串? [英] How to get string from HTML with regex?

问题描述

我正在尝试从html页面解析块，所以我尝试使用php preg_match此块

I'm trying to parse block from html page so i try to preg_match this block with php

if( preg_match('<\/div>(.*?)<div class="adsdiv">', $data, $t)) 

但不起作用

</div>

blablabla

blablabla

blablabla

<div class="adsdiv">

我只希望grep blablabla blablabla个字 任何帮助

i want grep only blablabla blablabla words any help

推荐答案

除上述内容外，还添加/s修饰符，以便.匹配换行符. (正如Alan所指出的，[^<]+仍将与换行符匹配)

Apart from what has been said above, also add the /s modifier so . will match newlines. (edit: as Alan kindly pointed out, [^<]+ will match newlines anyway)

我也总是使用/U，因为在这些情况下，默认情况下通常需要最小的匹配. (速度也会更快).还有/i，因为人们会说<div>，<DIV>甚至是<Div> ...

I always use /U as well since in these cases you normally want minimal matching by default. (will be faster as well). And /i since people say <div>, <DIV>, or even <Div>...

if (preg_match('/<\/div>([^<]+)<div class="adsdiv">/Usi', $data, $match))
{
    echo "Found: ".$match[1]."<br>";
} else {
    echo "Not found<br>";
}

修改使它更加明确！

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