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阅读DOM的部分PHP

2015-04-04 115 views
2

我想从网站上阅读某些部分，但我无法正确显示它，它没有抓取正确的部分，而是只显示它的全部内容（整个页面）而不是对象我选择了。阅读DOM的部分PHP

这是我试图复制的页面。 http://www.jabbithole.com/classes/engineer

我想要的是图像，拼写名称和类型为3个变量，所以我可以把它们放到一个名为“法术”的数组中。

$items = array('engineer'); 
foreach($items as $key => $value) { 

      $url = 'http://www.jabbithole.com/classes/'.$value;  
      $html = file_get_contents($url);    
      $dom = new domDocument; 
      @$dom->loadHTML($html);   
      $dom->preserveWhiteSpace = false; 
      $info = $dom->getElementsByTagName('tbody');  
      $trs = $dom->getElementsByTagName('tr'); 

      $spells = array(); 

      foreach($trs as $tr) { 
       foreach($tr->getElementsByTagName('td') as $row) { 
        foreach($row->getElementsByTagName('a') as $link) { 
         $class = $link->getAttribute('class'); 
         if($class == 'icon') 
         { 
          $img = $link->getAttribute('src');      
          print_r($img); 
         } 
         else 
         { 
          $name = $link->nodeValue;     
          print_r($name); 
         } 
        } 
       }   
      } 
}

马克起来什么，我试图让它读

<table class="datalist dataTable"> 
 
    <thead> 
 
    <tr> 
 
     <th class="left">Name</th> 
 
     <th>Type</th> 
 
     <th class="left int-sort">Source</th> 
 
    </tr> 
 
    </thead> 
 

 
    <tbody> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/mode-eradicate-47866"> 
 
      <img alt="Icon skillengineer eradication mode.36" src="/assets/icons/icon_skillengineer_eradication_mode.36.png" /> 
 
     </a> <a href="/spells/mode-eradicate-47866">Mode: Eradicate</a> 
 
     </td> 
 
     <td class="center">Innate</td> 
 
     <td>Class innate</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/mode-provoke-47881"> 
 
      <img alt="Icon skillengineer survival mode.36" src="/assets/icons/icon_skillengineer_survival_mode.36.png" /> 
 
     </a> <a href="/spells/mode-provoke-47881">Mode: Provoke</a> 
 
     </td> 
 
     <td class="center">Innate</td> 
 
     <td>Class innate</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/pulse-blast-42276"> 
 
      <img alt="Icon skillengineer pulse blast.36" src="/assets/icons/icon_skillengineer_pulse_blast.36.png" /> 
 
     </a> <a href="/spells/pulse-blast-42276">Pulse Blast</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 1</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/electrocute-41276"> 
 
      <img alt="Icon skillengineer electrocute.36" src="/assets/icons/icon_skillengineer_electrocute.36.png" /> 
 
     </a> <a href="/spells/electrocute-41276">Electrocute</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 2</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/artillery-bot-42814"> 
 
      <img alt="Icon skillengineer artillery bot.36" src="/assets/icons/icon_skillengineer_artillery_bot.36.png" /> 
 
     </a> <a href="/spells/artillery-bot-42814">Artillerybot</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 6</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/quick-burst-41477"> 
 
      <img alt="Icon skillengineer quick burst.36" src="/assets/icons/icon_skillengineer_quick_burst.36.png" /> 
 
     </a> <a href="/spells/quick-burst-41477">Quick Burst</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 6</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/energy-auger-34426"> 
 
      <img alt="Icon skillengineer energy trail.36" src="/assets/icons/icon_skillengineer_energy_trail.36.png" /> 
 
     </a> <a href="/spells/energy-auger-34426">Energy Auger</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 11</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/bio-shell-41341"> 
 
      <img alt="Icon skillengineer bioshell.36" src="/assets/icons/icon_skillengineer_bioshell.36.png" /> 
 
     </a> <a href="/spells/bio-shell-41341">Bio Shell</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 13</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/mortar-strike-41543"> 
 
      <img alt="Icon skillengineer mortar strike.36" src="/assets/icons/icon_skillengineer_mortar_strike.36.png" /> 
 
     </a> <a href="/spells/mortar-strike-41543">Mortar Strike</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 13</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/unstable-anomaly-34669"> 
 
      <img alt="Icon skillengineer anomaly launcher.36" src="/assets/icons/icon_skillengineer_anomaly_launcher.36.png" /> 
 
     </a> <a href="/spells/unstable-anomaly-34669">Unstable Anomaly</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 15</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/target-acquisition-38036"> 
 
      <img alt="Icon skillengineer target acquistion.36" src="/assets/icons/icon_skillengineer_target_acquistion.36.png" /> 
 
     </a> <a href="/spells/target-acquisition-38036">Target Acquisition</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 18 AMP</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/bolt-caster-34836"> 
 
      <img alt="Icon skillengineer bolt caster.36" src="/assets/icons/icon_skillengineer_bolt_caster.36.png" /> 
 
     </a> <a href="/spells/bolt-caster-34836">Bolt Caster</a> 
 
     </td> 
 
     <td class="center">Assault</td> 
 
     <td>Level 24</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/bruiser-bot-42894"> 
 
      <img alt="Icon skillengineer bruiser bot.36" src="/assets/icons/icon_skillengineer_bruiser_bot.36.png" /> 
 
     </a> <a href="/spells/bruiser-bot-42894">Bruiserbot</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 4</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/flak-cannon-41426"> 
 
      <img alt="Icon skillengineer flak cannon.36" src="/assets/icons/icon_skillengineer_flak_cannon.36.png" /> 
 
     </a> <a href="/spells/flak-cannon-41426">Flak Cannon</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 9</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/hyper-wave-41275"> 
 
      <img alt="Icon skillengineer hyper wave.36" src="/assets/icons/icon_skillengineer_hyper_wave.36.png" /> 
 
     </a> <a href="/spells/hyper-wave-41275">Hyper Wave</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 9</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/unsteady-miasma-41484"> 
 
      <img alt="Icon skillengineer give em gas.36" src="/assets/icons/icon_skillengineer_give_em_gas.36.png" /> 
 
     </a> <a href="/spells/unsteady-miasma-41484">Unsteady Miasma</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 11</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/feedback-41864"> 
 
      <img alt="Icon skillengineer feedback.36" src="/assets/icons/icon_skillengineer_feedback.36.png" /> 
 
     </a> <a href="/spells/feedback-41864">Feedback</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 15</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/disruptive-module-41815"> 
 
      <img alt="Icon skillengineer disruptive mod.36" src="/assets/icons/icon_skillengineer_disruptive_mod.36.png" /> 
 
     </a> <a href="/spells/disruptive-module-41815">Disruptive Module</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 18 AMP</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/ricochet-41429"> 
 
      <img alt="Icon skillengineer ricochet.36" src="/assets/icons/icon_skillengineer_ricochet.36.png" /> 
 
     </a> <a href="/spells/ricochet-41429">Ricochet</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 18</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/shock-pulse-42585"> 
 
      <img alt="Icon skillengineer shock pulse.36" src="/assets/icons/icon_skillengineer_shock_pulse.36.png" /> 
 
     </a> <a href="/spells/shock-pulse-42585">Shock Pulse</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 21</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/particle-ejector-34658"> 
 
      <img alt="Icon skillengineer particule ejector.36" src="/assets/icons/icon_skillengineer_particule_ejector.36.png" /> 
 
     </a> <a href="/spells/particle-ejector-34658">Particle Ejector</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 24</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/thresher-52133"> 
 
      <img alt="Icon skillengineer thresher.36" src="/assets/icons/icon_skillengineer_thresher.36.png" /> 
 
     </a> <a href="/spells/thresher-52133">Thresher</a> 
 
     </td> 
 
     <td class="center">Support</td> 
 
     <td>Level 31</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/zap-41438"> 
 
      <img alt="Icon skillengineer zap.36" src="/assets/icons/icon_skillengineer_zap.36.png" /> 
 
     </a> <a href="/spells/zap-41438">Zap</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 3</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/urgent-withdrawal-34522"> 
 
      <img alt="Icon skillengineer urgent withdrawal.36" src="/assets/icons/icon_skillengineer_urgent_withdrawal.36.png" /> 
 
     </a> <a href="/spells/urgent-withdrawal-34522">Urgent Withdrawal</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 6</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/recursive-matrix-42572"> 
 
      <img alt="Icon skillengineer recursive matrix.36" src="/assets/icons/icon_skillengineer_recursive_matrix.36.png" /> 
 
     </a> <a href="/spells/recursive-matrix-42572">Recursive Matrix</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 9</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/diminisher-bot-42833"> 
 
      <img alt="Icon skillengineer diminisher bot.36" src="/assets/icons/icon_skillengineer_diminisher_bot.36.png" /> 
 
     </a> <a href="/spells/diminisher-bot-42833">Diminisherbot</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 15</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/repair-bot-42810"> 
 
      <img alt="Icon skillengineer repair bot.36" src="/assets/icons/icon_skillengineer_repair_bot.36.png" /> 
 
     </a> <a href="/spells/repair-bot-42810">Repairbot</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 18 AMP</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/shatter-impairment-42803"> 
 
      <img alt="Icon skillengineer shatter impairment.36" src="/assets/icons/icon_skillengineer_shatter_impairment.36.png" /> 
 
     </a> <a href="/spells/shatter-impairment-42803">Shatter Impairment</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 18</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/volatile-injection-41756"> 
 
      <img alt="Icon skillengineer volatile injection.36" src="/assets/icons/icon_skillengineer_volatile_injection.36.png" /> 
 
     </a> <a href="/spells/volatile-injection-41756">Volatile Injection</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 21</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/code-red-41623"> 
 
      <img alt="Icon skillengineer code red.36" src="/assets/icons/icon_skillengineer_code_red.36.png" /> 
 
     </a> <a href="/spells/code-red-41623">Code Red</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 27</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/personal-defense-unit-44471"> 
 
      <img alt="Icon skillengineer personal defense unit.36" src="/assets/icons/icon_skillengineer_personal_defense_unit.36.png" /> 
 
     </a> <a href="/spells/personal-defense-unit-44471">Personal Defense Unit</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 27</td> 
 
    </tr> 
 
    <tr> 
 
     <td class="name"> 
 
     <a class="icon" href="/spells/obstruct-vision-51605"> 
 
      <img alt="Icon skillengineer shock wave.36" src="/assets/icons/icon_skillengineer_shock_wave.36.png" /> 
 
     </a> <a href="/spells/obstruct-vision-51605">Obstruct Vision</a> 
 
     </td> 
 
     <td class="center">Utility</td> 
 
     <td>Level 31</td> 
 
    </tr> 
 
    </tbody> 
 
</table>

来源

2015-04-04 Sickaaron

回答

1

使用this库：

<?PHP 
    //include library 
    require('simple_html_dom.php'); 

    $items = array('engineer'); 
    foreach($items as $key => $value) { 
     $url = 'http://www.jabbithole.com/classes/'.$value; 
     //read html from server and create html_dom object 
     $html = file_get_html($url); 

     //find the table using css selectors 
     $table = $html->find('#tab-abi table', 0); 

     $results = array(); 
     $first = true; 
     //iterate each tr 
     foreach($table->find('tr') as $element){ 
      //skip first tr (table header) 
      if($first){ 
       $first = false; 
       continue; 
      } 
      //extract data 
      $results[] = array(
       'image' => $element->find('img',0)->src, 
       'name' => $element->find('.name',0)->plaintext, 
       'class' => $element->find('.center',0)->plaintext 
      ); 
     } 
    } 

    print_r($results); 
?>

库允许您查询DOM使用CSS选择器（jQuery风格）a nd也支持格式不正确的HTML。

来源

2015-04-04 13:10:49 JohnKiller

+1

你，先生！是真棒！谢谢<3 – Sickaaron 2015-04-04 13:20:18

2

看起来像有人打败了我，但这是做同样事情的另一种方式。这次有了核心PHP函数。您可以使用DOMDocument解析文档，然后用一些简单的DOMXPath查询抢请求的内容：

// Load the HTML into a DOM document (@ = suppress a bunch of warnings) 
$dom = new DOMDocument(); 
@$dom->loadHTMLFile('http://www.jabbithole.com/classes/engineer'); 

// Create a DOM XPath object 
$xpath = new DOMXPath($dom); 

// Find all <tr> tags within the first <table> element, skipping the first <tr> 
// which is the header 
$trs = $xpath->query('//table[1]//tr[position() > 1]'); 

// Loop through found <tr> tags  
$abilities = []; 
foreach ($trs as $tr) { 
    // Name is value of first <td> inside <tr> 
    // Type is value of second <td> inside <tr> 
    // Image is the src attribute of the <img> tag inside <tr> 
    $name = $xpath->query('.//td[1]', $tr)->item(0)->nodeValue; 
    $type = $xpath->query('.//td[2]', $tr)->item(0)->nodeValue; 
    $image = $xpath->query('.//img/@src', $tr)->item(0)->nodeValue; 

    // Add to result array 
    $abilities[] = array(
     'name' => trim($name), 
     'type' => trim($type), 
     'image' => trim($image), 
    ); 
} 

print_r($abilities);

输出：

Array 
(
    [0] => Array 
     (
      [name] => Mode: Eradicate 
      [type] => Innate 
      [image] => /assets/icons/icon_skillengineer_eradication_mode.36.png 
     ) 

    ... 

    [31] => Array 
     (
      [name] => Obstruct Vision 
      [type] => Utility 
      [image] => /assets/icons/icon_skillengineer_shock_wave.36.png 
     ) 

)

来源

2015-04-04 13:56:10 mhall

+1

比接受的更好的解决方案。 – Gordon 2015-04-04 14:43:13

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