尝试打印由正则表达式找到的数据，该数据以特定顺序打印到2个不同的数组中

Question

我有一个HTML文件，需要从中提取某些数据。我正在使用正则表达式，这似乎很简单。我有两种类型的数据需要提取。我需要日期和交易。我想打印出特定日期的所有交易。但是由于日期编号以及交易都未编号。我不知道如何遍历两者。

老实说，我已经花了几个小时摸索着头，无法解决。

$balpage=curl_exec($ch);

for($i=0;$i<count(  );$i++){
  if(preg_match('#<\s*?strong\b[^>]*>(.*?) 
  </strong\b[^>]*>#s',$balpage)==1){

    preg_match('#<\s*?strong\b[^>]*>(.*?) 
    </strong\b[^>]*>#s',$balpage,$date);

    preg_match('#\<span class=\"issecureoff\"\>(.+?)\ 
 <\/span\>#s',$balpage,$transactions);


print_r($date[1][$i]);
print_r($transactions[1][$i]);
}

您看到的代码非常不完整，甚至无法正常工作，但我只是想说一下它应该是什么样子？抱歉，我真的很陌生，所以如果您编码的大师可以帮助我，那就太好了。

Answer 1

我的猜测是，您可能只想使用preg_match_all，但我们也可以略微修改表达式：

<\s*strong[^>]*>(.*?)<\/strong[^>]*>|<span class="issecureoff">(.+?)<\/span>

测试

$re = '/<\s*strong[^>]*>(.*?)<\/strong[^>]*>|<span class="issecureoff">(.+?)<\/span>/m';
$str = '<i class="uk-icon-calendar"></i><strong>2019.06.04</strong></td>
                                </tr>

                                <tr>
                                    <td>
                                         09:35
                                    </td>
                                    <td>
                                        орлого
                                    </td>
                                    <td class="text-16 uk-text-nowrap">
                                        <span class="issecureoff">0.00</span>
                                        <span class="issecureon">*</span>
                                    </td>

                                    <td class="text-green uk-text-nowrap">
                                        <span class="issecureoff">5,000.00</span>
                                        <span class="issecureon">*</span>
                                        <img src="Content/img/arrow_up.png" width="8"></td>

                                    <td class="text-16 uk-text-nowrap">
                                        <span class="issecureoff">5,000.00</span>
                                        <span class="issecureon">*</span>
                                    </td>
                                    <td class="text-16 uk-text-nowrap uk-text-right">                 </td>
                                </tr>

                                <tr>
                                    <td>
                                         09:35
                                    </td>
                                    <td>
                                        Ухаалаг мэдээ үйлчилгээний хураамж
                                    </td>
                                    <td class="text-16 uk-text-nowrap">
                                        <span class="issecureoff">5,000.00</span>
                                        <span class="issecureon">*</span>
                                    </td>

                                    <td class="text-red uk-text-nowrap">
                                        <span class="issecureoff">-50.00</span>
                                        <span class="issecureon">*</span>
                                        <img src="Content/img/arrown_down.png" width="8"></td>

                                    <td class="text-16 uk-text-nowrap">
                                        <span class="issecureoff">4,950.00</span>
                                        <span class="issecureon">*</span>
                                    </td>
                                    <td class="text-16 uk-text-nowrap uk-text-right">                 </td>
                                </tr>

                                <tr>
                                    <td colspan="6" class="text-12 letter-space-1"><i class="uk-icon-calendar"></i><strong>2019.06.14</strong></td>
                                </tr>

                                <tr>
                                    <td>
                                         11:00
                                    </td>
                                    <td>
                                        batidert
                                    </td>
                                    <td class="text-16 uk-text-nowrap">
                                        <span class="issecureoff">4,950.00</span>
                                        <span class="issecureon">*</span>
                                    </td>

                                    <td class="text-green uk-text-nowrap">
                                        <span class="issecureoff">50,000.00</span>
                                        <span class="issecureon">*</span>
                                        <img src="Content/img/arrow_up.png" width="8"></td>

                                    <td class="text-16 uk-text-nowrap">
                                        <span class="issecureoff">54,950.00</span>
                                        <span class="issecureon">*</span>
                                    </td>
                                    <td class="text-16 uk-text-nowrap uk-text-right">       5028604392</td>
                                </tr>
';

preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);

// Print the entire match result
var_dump($matches);

输出

array(11) {
  [0]=>
  array(2) {
    [0]=>
    string(27) "<strong>2019.06.04</strong>"
    [1]=>
    string(10) "2019.06.04"
  }
  [1]=>
  array(3) {
    [0]=>
    string(37) "<span class="issecureoff">0.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(4) "0.00"
  }
  [2]=>
  array(3) {
    [0]=>
    string(41) "<span class="issecureoff">5,000.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(8) "5,000.00"
  }
  [3]=>
  array(3) {
    [0]=>
    string(41) "<span class="issecureoff">5,000.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(8) "5,000.00"
  }
  [4]=>
  array(3) {
    [0]=>
    string(41) "<span class="issecureoff">5,000.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(8) "5,000.00"
  }
  [5]=>
  array(3) {
    [0]=>
    string(39) "<span class="issecureoff">-50.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(6) "-50.00"
  }
  [6]=>
  array(3) {
    [0]=>
    string(41) "<span class="issecureoff">4,950.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(8) "4,950.00"
  }
  [7]=>
  array(2) {
    [0]=>
    string(27) "<strong>2019.06.14</strong>"
    [1]=>
    string(10) "2019.06.14"
  }
  [8]=>
  array(3) {
    [0]=>
    string(41) "<span class="issecureoff">4,950.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(8) "4,950.00"
  }
  [9]=>
  array(3) {
    [0]=>
    string(42) "<span class="issecureoff">50,000.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(9) "50,000.00"
  }
  [10]=>
  array(3) {
    [0]=>
    string(42) "<span class="issecureoff">54,950.00</span>"
    [1]=>
    string(0) ""
    [2]=>
    string(9) "54,950.00"
  }
}

Please see the demo here