用phpQuery像jquery一樣解析html程式碼

簡介

如何在php中方便解析html程式碼，估計是每個phper都會遇到的問題。用phpQuery就可以讓php處理html程式碼像jQuery一樣方便。

專案地址：https://code.google.com/p/phpquery/

github網址：https://github.com/TobiaszCudnik/phpquery

DEMO

下載庫檔案：https://code.google.com/p/phpquery/downloads/list

我下的是onefile版：phpQuery-0.9.5.386-onefile.zip

官方demo：https://code.google.com/p/phpquery/source/browse/branches/dev/demo.php

然後在項目中引用。

html檔案test.html：

<span><</span><span>div </span><span>class</span><span>="thumb"</span><span> id</span><span>="Thumb-13164-3640"</span><span> style</span><span>="position: absolute; left: 0px; top: 0px;"</span><span>></span>
    <span><</span><span>a </span><span>href</span><span>="/Spiderman-City-Drive"</span><span>></span>
        <span><</span><span>img </span><span>src</span><span>="/thumb/12/Spiderman-City-Drive.jpg"</span><span> alt</span><span>=""</span><span>></span>
        <span><</span><span>span </span><span>class</span><span>="GameName"</span><span> id</span><span>="GameName-13164-3640"</span><span> style</span><span>="display: none;"</span><span>></span>Spiderman City Drive<span></</span><span>span</span><span>></span>
        <span><</span><span>span </span><span>class</span><span>="GameRating"</span><span> id</span><span>="GameRating-13164-3640"</span><span> style</span><span>="display: none;"</span><span>></span>
            <span><</span><span>span </span><span>style</span><span>="width: 68.14816px;"</span><span>></</span><span>span</span><span>></span>
        <span></</span><span>span</span><span>></span>
    <span></</span><span>a</span><span>></span>
<span></</span><span>div</span><span>></span>
<span><</span><span>div </span><span>class</span><span>="thumb"</span><span> id</span><span>="Thumb-13169-5946"</span><span> style</span><span>="position: absolute; left: 190px; top: 0px;"</span><span>></span>
    <span><</span><span>a </span><span>href</span><span>="/Spiderman-City-Raid"</span><span>></span>
        <span><</span><span>img </span><span>src</span><span>="/thumb/12/Spiderman-City-Raid.jpg"</span><span> alt</span><span>=""</span><span>></span>
        <span><</span><span>span </span><span>class</span><span>="GameName"</span><span> id</span><span>="GameName-13169-5946"</span><span> style</span><span>="display: none;"</span><span>></span>Spiderman - City Raid<span></</span><span>span</span><span>></span>
        <span><</span><span>span </span><span>class</span><span>="GameRating"</span><span> id</span><span>="GameRating-13169-5946"</span><span> style</span><span>="display: none;"</span><span>></span>
            <span><</span><span>span </span><span>style</span><span>="width: 67.01152px;"</span><span>></</span><span>span</span><span>></span>
        <span></</span><span>span</span><span>></span>
    <span></</span><span>a</span><span>></span>
<span></</span><span>div</span><span>></span>

php處理：

<?<span>php
    </span><span>include</span>('phpQuery-onefile.php'<span>);
    
    </span><span>$filePath</span> = 'test.html'<span>;
    </span><span>$fileContent</span> = <span>file_get_contents</span>(<span>$filePath</span><span>);
    </span><span>$doc</span> = phpQuery::newDocumentHTML(<span>$fileContent</span><span>);
    phpQuery</span>::selectDocument(<span>$doc</span><span>);
    </span><span>$data</span> = <span>array</span><span>(
        </span>'name' => <span>array</span>(),
        'href' => <span>array</span>(),
        'img' => <span>array</span><span>()
    );
    </span><span>foreach</span> (pq('a') <span>as</span> <span>$t</span><span>) {
        </span><span>$href</span> = <span>$t</span> -> getAttribute('href'<span>);
        </span><span>$data</span>['href'][] = <span>$href</span><span>;
    }
    </span><span>foreach</span> (pq('img') <span>as</span> <span>$img</span><span>) {
        </span><span>$data</span>['img'][] = <span>$domain</span> . <span>$img</span> -> getAttribute('src'<span>);
    }
    </span><span>foreach</span> (pq('.GameName') <span>as</span> <span>$name</span><span>) {
        </span><span>$data</span>['name'][] = <span>$name</span> -><span> nodeValue;
    }
    </span><span>var_dump</span>(<span>$data</span><span>);
</span>?>

上面的程式碼包含了取屬性和innerText內容（透過nodeValue取）。

輸出：

<span>array</span> (size=3<span>)
  </span>'name' => 
    <span>array</span> (size=2<span>)
      </span>0 => <span>string</span> 'Spiderman City Drive' (length=20<span>)
      </span>1 => <span>string</span> 'Spiderman - City Raid' (length=21<span>)
  </span>'href' => 
    <span>array</span> (size=2<span>)
      </span>0 => <span>string</span> 'http://www.gahe.com/Spiderman-City-Drive' (length=40<span>)
      </span>1 => <span>string</span> 'http://www.gahe.com/Spiderman-City-Raid' (length=39<span>)
  </span>'img' => 
    <span>array</span> (size=2<span>)
      </span>0 => <span>string</span> 'http://www.gahe.com/thumb/12/Spiderman-City-Drive.jpg' (length=53<span>)
      </span>1 => <span>string</span> 'http://www.gahe.com/thumb/12/Spiderman-City-Raid.jpg' (length=52)

強大的是pq選擇器，語法類似jQuery，很方便。

以上就介紹了用phpQuery像jquery一樣解析html程式碼，包含了方面的內容，希望對PHP教學有興趣的朋友有幫助。