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$str = '<div class="info">
<small>时间:</small>2015-12-24 09:47<small>来源:</small>华尔街见闻 <small>作者:</small>member <small>点击:</small>
<script src="/plus/count.php?view=yes&aid=467&mid=2" type="text/javascript" language="javascript"></script>145
次
</div>';
preg_match_all('/\d+-\d+-\d+ \d+:\d+/', $str, $matches);
print_r($matches);
Array ( [0] => Array ( [0] => 2015-12-24 09:47 ) )
header('Content-type:text/html;charset=UTF-8');
$str = '<div class="info">
<small>时间:</small>2015-12-24 09:47<small>来源:</small>华尔街见闻 <small>作者:</small>member <small>点击:</small>
<script src="/plus/count.php?view=yes&aid=467&mid=2" type="text/javascript" language="javascript"></script>145
次
</div>';
preg_match_all('/d+-\d+-\d+ \d+:\d+/', $str, $matches);
print_r($matches);
我觉得思路是对的,可是结果是空数组Array ( [0] => Array ( ) )