数据解析-使用php进行检索

Question

假设我们在一个网页中有如下结构。如何使用php检索以下信息？XAXAXA-SASASA2-1 ZAZAZAZA-CACACACA 2-2

<th class='black' colspan='6'>something</th>
<tr class=''>
        <td bgcolor = '#272727' width = 40%>XAXAXA</td>
        <td bgcolor = '#272727'  width = '5%'> - </td>
        <td bgcolor = '#272727' width = '40%'>SASASASA</td>
        <td bgcolor = '#272727'  width = '5%'>2</td>
        <td bgcolor = '#272727'  width = '5%'> - </td>
        <td bgcolor = '#272727' width = '5%'>1</td>
    </tr>
<tr class=''>
        <td bgcolor = '#484848' width = 40%>ZAZAZAZA</td>
        <td bgcolor = '#484848'  width = '5%'> - </td>
        <td bgcolor = '#484848' width = '40%'>CACACACA</td>
        <td bgcolor = '#484848'  width = '5%'>2</td>
        <td bgcolor = '#484848'  width = '5%'> - </td>
        <td bgcolor = '#484848' width = '5%'>2</td>
    </tr>

Answer 1

你可以使用DOMDocument来做这件事，非常简单：

$DOM = new DOMDocument();
$DOM->loadHTML($Content);
$TH = $DOM->getElementsByTagName("td");

foreach($TH as $Item)
{
    echo $Item->nodeValue;
}

http://codepad.org/VFHjlCbc

• DOMDocument：http://www.php.net/manual/en/class.domdocument.php

• 示例

Answer 2

您可以使用正则表达式来匹配这样的模式。preg_match()函数是一个很好的起点。

Answer 3

我希望你这次能接受回答！只需取出1到13组的比赛即可。

$sourcestring="your source string";
preg_match_all('/<th[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*).*?<td[^>]*>([^<]*)/is',$sourcestring,$matches);
echo "<pre>".print_r($matches,true);

结果：

    [0] => Array
        (
            [0] => <th class='black' colspan='6'>something</th>
<tr class=''>
        <td bgcolor = '#272727' width = 40%>XAXAXA</td>
        <td bgcolor = '#272727'  width = '5%'> - </td>
        <td bgcolor = '#272727' width = '40%'>SASASASA</td>
        <td bgcolor = '#272727'  width = '5%'>2</td>
        <td bgcolor = '#272727'  width = '5%'> - </td>
        <td bgcolor = '#272727' width = '5%'>1</td>
    </tr>
<tr class=''>
        <td bgcolor = '#484848' width = 40%>ZAZAZAZA</td>
        <td bgcolor = '#484848'  width = '5%'> - </td>
        <td bgcolor = '#484848' width = '40%'>CACACACA</td>
        <td bgcolor = '#484848'  width = '5%'>2</td>
        <td bgcolor = '#484848'  width = '5%'> - </td>
        <td bgcolor = '#484848' width = '5%'>2
        )

    [1] => Array
        (
            [0] => something
        )

    [2] => Array
        (
            [0] => XAXAXA
        )

    [3] => Array
        (
            [0] =>  - 
        )

    [4] => Array
        (
            [0] => SASASASA
        )

    [5] => Array
        (
            [0] => 2
        )

    [6] => Array
        (
            [0] =>  - 
        )

    [7] => Array
        (
            [0] => 1
        )

    [8] => Array
        (
            [0] => ZAZAZAZA
        )

    [9] => Array
        (
            [0] =>  - 
        )

    [10] => Array
        (
            [0] => CACACACA
        )

    [11] => Array
        (
            [0] => 2
        )

    [12] => Array
        (
            [0] =>  - 
        )

    [13] => Array
        (
            [0] => 2
        )