0
我想从此示例中提取数字203。PHP正则表达式preg_match数字之前的多字字符串
这里是我正在对正则表达式的示例:
<span class="crAvgStars" style="white-space:no-wrap;"><span class="asinReviewsSummary" name="B00KFQ04CI" ref="cm_cr_if_acr_cm_cr_acr_pop_" getargs="{"tag":"","linkCode":"sp1"}">
<a href="http://rads.stackoverflow.com/amzn/click/B00KFQ04CI" target="_top"><img src="https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/customer-reviews/ratings/stars-4-5._CB192238104_.gif" width="55" alt="4.3 out of 5 stars" align="absbottom" title="4.3 out of 5 stars" height="12" border="0" /></a> </span>(<a href="http://rads.stackoverflow.com/amzn/click/B00KFQ04CI" target="_top">203 customer reviews</a>)</span>
这里是我用不工作
preg_match('/^\D*(\d+)customer reviews.*$/',$results[0], $clean_results);
echo "<pre>";
print_r($clean_results);
echo "</pre>";
//expecting 203
代码它只是返回
<pre>array()</pre>
' '/(\ d +)顾客评论\ B /'' –
preg_match'的'结果是一个数组,所以将其打印出来,你必须使用'print_r',不' echo'。第一个括号组在'$ clean_results [1]' – fusion3k
真棒!这是答案。我很高兴地标记这个! @WiktorStribiżew – user1669039