班级名称没有空格，请勿尝试匹配

Question

我正在使用Simple HTML DOM从网站获取元素，但是当class属性有空格时，我什么也得不到。

来自betaexplorer.com

的源HTML

<table id="table-type-2" class="stats-table stats-main table-2">
    <tbody>
    <tr class="odd glib-participant-ppjDR086" data-def-order="0">
        <td class="rank col_rank no" title="">1.</td>
        <td class="participant_name col_participant_name col_name"><span class="team_name_span"><a onclick="javascript:getUrlByWinType('/soccer/england/premier-league/teaminfo.php?team_id=ppjDR086');">Manchester United</a></span></td>
        <td class="matches_played col_matches_played">4</td>
        <td class="wins col_wins">4</td>
        <td class="draws col_draws">0</td>
        <td class="losses col_losses">0</td>
        <td class="goals col_goals">14:0</td>
        <td class="goals col_goals">12</td>
    </tr>
    <tr class="even glib-participant-hA1Zm19f" data-def-order="1">
        <td class="rank col_rank no" title="">2.</td>
        <td class="participant_name col_participant_name col_name"><span class="team_name_span"><a onclick="javascript:getUrlByWinType('/soccer/england/premier-league/teaminfo.php?team_id=hA1Zm19f');">Arsenal</a></span></td>
        <td class="matches_played col_matches_played">4</td>
        <td class="wins col_wins">4</td>
        <td class="draws col_draws">0</td>
        <td class="losses col_losses">0</td>
        <td class="goals col_goals">11:3</td>
        <td class="goals col_goals">12</td>
    </tr>
    <tr class="odd glib-participant-Wtn9Stg0" data-def-order="2">
        <td class="rank col_rank no" title="">3.</td>
        <td class="participant_name col_participant_name col_name"><span class="team_name_span"><a onclick="javascript:getUrlByWinType('/soccer/england/premier-league/teaminfo.php?team_id=Wtn9Stg0');">Manchester City</a></span></td>
        <td class="matches_played col_matches_played">4</td>
        <td class="wins col_wins">3</td>
        <td class="draws col_draws">1</td>
        <td class="losses col_losses">0</td>
        <td class="goals col_goals">18:3</td>
        <td class="goals col_goals">10</td>
    </tr>
    </tbody>
</table>

我的PHP代码使用SimpleHtmlDom

    <?php
include('../simple_html_dom.php');


function getHTML($url,$timeout)
{
       $ch = curl_init($url); // initialize curl with given url
       curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER["HTTP_USER_AGENT"]); // set  useragent
       curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // write the response to a variable
       curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // follow redirects if any
       curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); // max. seconds to execute
       curl_setopt($ch, CURLOPT_FAILONERROR, 1); // stop when it encounters an error
       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
       curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
       return @curl_exec($ch);
}



$response=getHTML("http://www.betexplorer.com/soccer/england/premier-league/standings/?table=table&table_sub=home&ts=WOO1nDO2&dcheck=0",10);
$html = str_get_html($response);

$team = $html->find("span[class=team_name_span]/a"); 
$numbermatch = $html->find("td.matches_played.col_matches_played"); 
$wins = $html->find("td.wins.col_wins"); 
$draws = $html->find("td.draws.col_draws"); 
$losses = $html->find("td.losses.col_losses"); 
$goals = $html->find("td.goals.col_goals"); 

?>

<table border="1" width="100%">
    <thead>
        <tr>
            <th>Team</th>
            <th>MP</th>
            <th>W</th>
            <th>D</th>
            <th>L</th>
            <th>G</th>
        </tr>
    </thead>

<?php



foreach ($team as $match) {


echo  "<tr>".

            "<td class='first-cell'>".$match->innertext."</td> "  .
            "<td class='first-cell'>".$numbermatch->innertext."</td> "  .
            "<td class='first-cell'>".$wins->innertext."</td> "  .
            "<td class='first-cell'>".$draws->innertext."</td> "  .
            "<td class='first-cell'>".$losses->innertext."</td> "  .
            "<td class='first-cell'>".$goals->innertext."</td> "  .


            "</tr><br/>";



        }       



?>
</table>

所以，我只得到第一个值（因为类名没有空格），但是我不能得到其余的值

编辑：我修错了PHP代码。再看一遍

EDIT2：这不是重复，我尝试了解决方案，但它不起作用

EDIT3：我尝试使用advanced_html_dom（它应该修复空间问题），但我没有得到任何东西（也是我唯一得到的东西）

EDIT4：在下面的屏幕中，您可以看到我想要获得的内容以及我现在得到的内容：

EDIT5

team.php

    <?php

// START team.php 
class Team
{
    public $name, $matches, $wins, $draws, $losses, $goals;

    public static function parseRow($row): ?self
    {
        $result = new self();
        $result->name = $result->parseMatch($row, 'span.team_name_span a');
        if (null === $result->name) {
            return null; // couldn't even match the name, probably not a team row, skip it
        }

        $result->matches = $result->parseMatch($row, 'td.col_matches_played');
        $result->wins = $result->parseMatch($row, 'td.col_wins');
        $result->draws = $result->parseMatch($row, 'td.col_draws');
        $result->losses = $result->parseMatch($row, 'td.col_losses');
        $result->goals = $result->parseMatch($row, 'td.col_goals');

        return $result;
    }

    private function parseMatch($row, $selector)
    {
        if (!empty($match = $row->find($selector, 0))) {
            return $match->innertext;
        }

        return null;
    }
}

// END team.php

?>

clas.php

    <?php

include('../simple_html_dom.php');
include('../team.php');


function getHTML($url,$timeout)
{
       $ch = curl_init($url); // initialize curl with given url
       curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER["HTTP_USER_AGENT"]); // set  useragent
       curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // write the response to a variable
       curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // follow redirects if any
       curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout); // max. seconds to execute
       curl_setopt($ch, CURLOPT_FAILONERROR, 1); // stop when it encounters an error
       curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
       curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
       return @curl_exec($ch);
}



$response=getHTML("http://www.betexplorer.com/soccer/england/premier-league/standings/?table=table&table_sub=home&ts=WOO1nDO2&dcheck=0",10);
$html = str_get_html($response);



// START DOM parsing block
$teams = [];

foreach($html->find('table.stats-table tr') as $row) {
    $team = Team::parseRow($row); // load the row into a Team object if possible

    // skipp this entry if it couldn't match the row
    if (null !== $team) {
        // what were actually doing here is just the OOP equivalent of:
        // $teams[] = ['name' => $row->find('span.team_name_span a',0)->innertext, ...];
        $teams[] = $team;
    }
}

foreach($teams as $team) {
    echo $team->name;
    echo $team->matches;
}

// END DOM Parsing Block

?>

Answer 1

解决方案： http://phpfiddle.org/main/code/cq54-hta2

班级名称没有空格，请勿尝试匹配

SimpleHtmlDom不支持这样的属性选择器。另外，您可以使用类来匹配类，就好像它在类名中有空格一样。所以，而不是：

$wins = $html->find("td[class=wins col_wins]"); 
$draws = $html->find("td[class=draws col_draws]"); 
$losses = $html->find("td[class=losses col_losses]");

执行以下操作以匹配与两个类名称匹配的td元素：

$wins = $html->find("td.wins.col_wins"); 
$draws = $html->find("td.draws.col_draws"); 
$losses = $html->find("td.losses.col_losses");

此外，如果您只是这样做，HTML标记并不要求您匹配这两个类来获取数据：

$wins = $html->find("td.col_wins"); 
$draws = $html->find("td.col_draws"); 
$losses = $html->find("td.col_losses");

获取重复的选择器（循环遍历行）。

您要提取的是来自表行的数据数组。更具体地说，看起来像这样：

$teams = [
    ['Arsenal', matches, wins, ...],
    ['Liverpool', matches, wins, ...],
    ...
];

这意味着您需要针对表的每一行运行相同的数据提取。 SimpleHtmlDom通过类似jQuery的find方法简化了这一过程，可以从任何匹配的元素中调用它们。

完整解决方案

此解决方案实际上定义了一个Team对象来加载每行的数据。应该使未来的调整更加简单。

这里要注意的重要一点是，首先我们将每个表格行循环为$row，然后从$row->find([selector])收集团队和数字。

// START team.php 
class Team
{
    public $name, $matches, $wins, $draws, $losses, $goals;

    public function __construct($row)
    {
        $this->name = $this->parseMatch($row, 'span.team_name_span a');
        if (null === $this->name) {
            return; // couldn't even match the name, probably not a team row, skip it
        }

        $this->matches = $this->parseMatch($row, 'td.col_matches_played');
        $this->wins = $this->parseMatch($row, 'td.col_wins');
        $this->draws = $this->parseMatch($row, 'td.col_draws');
        $this->losses = $this->parseMatch($row, 'td.col_losses');
        $this->goals = $this->parseMatch($row, 'td.col_goals');
    }

    private function parseMatch($row, $selector)
    {
        if (!empty($match = $row->find($selector, 0))) {
            return $match->innertext;
        }

        return null;
    }

    public function isValid()
    {
        return null !== $this->name;
    }

    public function getMatchData() //example
    {
        return "<br><b>". $this->wins .' : '. $this->matches . "</b>";
    }
}

// END team.php

// START DOM parsing block
$teams = [];

foreach($html->find('table.stats-table tr') as $row) {
    $team = new Team($row); // load the row into a Team object if possible

    // skipp this entry if it couldn't match the row
    if ($team->isValid()) {
        // what were actually doing here is just the OOP equivalent of:
        // $teams[] = ['name' => $row->find('span.team_name_span a',0)->innertext, ...];
        $teams[] = $team;
    }
}

foreach($teams as $team) {
    echo "<h1>".$team->name."</h1>";
    echo $team->losses;
    echo $team->getMatchData();
}

// END DOM Parsing Block

简单的HTML DOM空间到类

来自betaexplorer.com

我的PHP代码使用SimpleHtmlDom

1 个答案:

班级名称没有空格，请勿尝试匹配

获取重复的选择器（循环遍历行）。

完整解决方案