php正则匹配一段文字 很简单 60分
- PHP code
<!--
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-->
<span class="ball-type-1">
<var>1</var>
<var>2</var>
<var>3</var>
<var>4</var>
<var>5</var>
</span>
匹配出 1 2 3 4 5 这5个数字就行了
谢谢了 在线刷新等
------解决方案--------------------
$str=
1
2
3
4
5
html;
preg_match_all('#(.*)#isU',$str,$arr);
print_r($arr[1]);
------解决方案--------------------
preg_match_all('#(\d+)#isU',$str,$arr);
------解决方案--------------------
i: 表示in-casesensitive，即大小写不敏感
s: PCRE_DOTALL，表示点号可以匹配换行符。
U: 表示PCRE_UNGREEDY，表示非贪婪，相当于perl/python语言的.*?，在匹配过程中，对于.*正则，一有匹配立即执行，而不是等.*消费了所有字符再一一回退。
------解决方案--------------------
- PHP code
<?php $str = <<<html
<span class="ball-type-1">
<var>1</var>
<var>2</var>
<var>3</var>
<var>4</var>
<var>5</var>
html;
preg_match_all('#<var>(\d+)</var>#i', $str, $arr);
print_r($arr[1]); <div class="clear">
</div>
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