求高手帮忙写一个截取字符串的正则表达式
完全不懂正则,但最近一个小事情需要用到,求高手帮忙
目的是实现从html代码中,截取相关数字:
html代码如下,要截取的数字用红色标记
------解决方案--------------------
也不知道你那逗号到底是要还是不要...还是一个要一个不要...
- PHP code
$str = <input type="hidden" id="firstidarticle" name="firstidarticle" value="2425898"><input type="hidden" name="pageflag" value="1"> HTML; if (preg_match('/idArticleslist"\svalue="([\d\,]+)"/', $str, $match)) { echo $match[1]; } <br><font color="#e78608">------解决方案--------------------</font><br>
- PHP code
[liangdong@bb-browser-test00.vm.baidu.com php_project]$ php main.php Array ( [0] => 2425898 [1] => 2427913 ) [liangdong@bb-browser-test00.vm.baidu.com php_project]$ cat main.php <?php $str = <<<EOF <input type="hidden" name="idArticleslist" value="2425898,2427913,"><input type="hidden" id="firstidarticle" name="firstidarticle" value="2425898"><input type="hidden" name="pageflag" value="1"> EOF; $n = preg_match('/<input. if print_r trim> <br><font color="#e78608">------解决方案--------------------</font><br><dl class="code">PHP code<pre class="brush:php;toolbar:false"> $s=<input type="hidden" id="firstidarticle" name="firstidarticle" value="2425sss98"><input type="hidden" name="pageflag" value="1"> html; preg_match('#(?<font color="#e78608">------解决方案--------------------</font><br><input type="hidden" name="idArticleslist" value="2425898,2427913,"><br>正则:<br><input type='\"hidden\"' name='\"idArticleslist\"' value='\"(.[^"]*)\"'><br>正则就这么简单,需要转译的加一个反斜线,要匹配的都在括号里,防止匹配的太贪婪,你就告诉他[^"],意思是遇到双引号就匹配结束.这样就行了<br>给你推荐一个软件 RegexBuddy 这个软件用来测试正则表达式的,你可以借助它学一下正则,写程序不会正则是很麻烦的. <div class="clear"> </div>

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