mrkad
/
php-phantomjs
Mirror von https://github.com/jonnnnyw/php-phantomjs.git


			
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        <a href="http://jonnnnyw.github.io/php-phantomjs/">PHP PhantomJs</a>
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	Run PhantomJS scripts through PHP
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  <h1>Usage </h1>
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	  <p>This page contains some common examples of how to use the PHP PhantomJS library.</p>

<ul>
  <li><a href="#basic-request">Basic Request</a></li>
  <li><a href="#post-request">POST Request</a></li>
  <li><a href="#other-request-methods">Other Request Methods</a></li>
  <li><a href="#response-data">Response Data</a></li>
  <li><a href="#screen-captures">Screen Captures</a></li>
  <li><a href="#custom-timeout">Custom Timeout</a></li>
  <li><a href="#delay-page-render">Delay Page Render</a></li>
  <li><a href="#custom-run-options">Custom Run Options</a></li>
</ul>

<p>For more advanced customization or to load your own PhantomJS scripts, see the <a href="http://jonnnnyw.github.io/php-phantomjs/advanced.html">advanced</a> documentation.</p>

<h2 id="basic-request">Basic Request</h2>

<p>A basic GET request:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>
    
    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createRequest</span><span class="p">();</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>
    
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setMethod</span><span class="p">(</span><span class="s1">&#39;GET&#39;</span><span class="p">);</span>
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setUrl</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">);</span>
    
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span>
    
    <span class="k">if</span><span class="p">(</span><span class="nv">$response</span><span class="o">-&gt;</span><span class="na">getStatus</span><span class="p">()</span> <span class="o">===</span> <span class="mi">200</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">echo</span> <span class="nv">$response</span><span class="o">-&gt;</span><span class="na">getContent</span><span class="p">();</span>
    <span class="p">}</span></code></pre></div>

<p>You can also set the URL, request method and timeout period when creating a new request instance through the message factory:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>
     
    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createRequest</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">,</span> <span class="s1">&#39;GET&#39;</span><span class="p">,</span> <span class="mi">5000</span><span class="p">);</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>
        
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span>
    
    <span class="k">if</span><span class="p">(</span><span class="nv">$response</span><span class="o">-&gt;</span><span class="na">getStatus</span><span class="p">()</span> <span class="o">===</span> <span class="mi">200</span><span class="p">)</span> <span class="p">{</span>
        <span class="k">echo</span> <span class="nv">$response</span><span class="o">-&gt;</span><span class="na">getContent</span><span class="p">();</span>
    <span class="p">}</span></code></pre></div>

<h2 id="post-request">POST Request</h2>

<p>A basic POST request:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>
    
    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createRequest</span><span class="p">();</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>
    
    <span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
        <span class="s1">&#39;param1&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Param 1&#39;</span><span class="p">,</span>
        <span class="s1">&#39;param2&#39;</span> <span class="o">=&gt;</span> <span class="s1">&#39;Param 2&#39;</span>
    <span class="p">);</span>
    
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setMethod</span><span class="p">(</span><span class="s1">&#39;POST&#39;</span><span class="p">);</span>
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setUrl</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">);</span>
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setRequestData</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span> <span class="c1">// Set post data</span>
    
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span></code></pre></div>

<h2 id="other-request-methods">Other Request Methods</h2>

<p>The PHP PhantomJS library supports the following request methods:</p>

<ul>
  <li>OPTIONS</li>
  <li>GET</li>
  <li>HEAD</li>
  <li>POST</li>
  <li>PUT</li>
  <li>DELETE</li>
  <li>PATCH</li>
</ul>

<p>The request method can be set when creating a new request instance through the message factory:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>

    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createRequest</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">,</span> <span class="s1">&#39;PUT&#39;</span><span class="p">);</span></code></pre></div>

<p>Or on the request instance itself:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>

    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createRequest</span><span class="p">();</span>
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setMethod</span><span class="p">(</span><span class="s1">&#39;PATCH&#39;</span><span class="p">);</span></code></pre></div>

<h2 id="response-data">Response Data</h2>

<p>A standard response gives you access to the following interface:</p>

<table>
  <thead>
    <tr>
      <th style="text-align: center">Accessor</th>
      <th>Description</th>
      <th style="text-align: center">Return Type</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td style="text-align: center">getHeaders()</td>
      <td>Returns an array of all response headers.</td>
      <td style="text-align: center">Array</td>
    </tr>
    <tr>
      <td style="text-align: center">getHeader(<em>header</em>)</td>
      <td>Returns the value for a specific response header e.g. Content-Type.</td>
      <td style="text-align: center">Mixed</td>
    </tr>
    <tr>
      <td style="text-align: center">getStatus()</td>
      <td>The response status code e.g. 200.</td>
      <td style="text-align: center">Int</td>
    </tr>
    <tr>
      <td style="text-align: center">getContent()</td>
      <td>The raw page content of the requested page.</td>
      <td style="text-align: center">String</td>
    </tr>
    <tr>
      <td style="text-align: center">getContentType()</td>
      <td>The content type of the requested page.</td>
      <td style="text-align: center">String</td>
    </tr>
    <tr>
      <td style="text-align: center">getUrl()</td>
      <td>The URL of the requested page.</td>
      <td style="text-align: center">String</td>
    </tr>
    <tr>
      <td style="text-align: center">getRedirectUrl()</td>
      <td>If the response was a redirect, this will return the redirect URL.</td>
      <td style="text-align: center">String</td>
    </tr>
    <tr>
      <td style="text-align: center">isRedirect()</td>
      <td>Will return true if the response was a redirect or false otherwise.</td>
      <td style="text-align: center">Boolean</td>
    </tr>
    <tr>
      <td style="text-align: center">getConsole()</td>
      <td>Returns an array of any javascript errors on the requested page along with a stack trace.</td>
      <td style="text-align: center">Array</td>
    </tr>
  </tbody>
</table>

<p>If the response contains a status code of 0, chances are the request failed. Check the request <a href="http://jonnnnyw.github.io/php-phantomjs/troubleshooting.html#debugging">debug log</a> for more detailed information about what may have gone wrong.</p>

<h2 id="screen-captures">Screen Captures</h2>

<p>You can save screen captures of a page to your local disk by creating a screen capture request and setting the path you wish to save the file to:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>

    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createCaptureRequest</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">);</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>
    
    <span class="nv">$file</span> <span class="o">=</span> <span class="s1">&#39;/path/to/save/your/screen/capture/file.jpg&#39;</span><span class="p">;</span>
    
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setCaptureFile</span><span class="p">(</span><span class="nv">$file</span><span class="p">);</span>
    
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span></code></pre></div>

<p>You will need to make sure the directory that you are saving the file to exists and is writable by your application.</p>

<p>You can also set the width, height, x and y axis for your screen capture:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>

    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createCaptureRequest</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">);</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>
    
    <span class="nv">$file</span> <span class="o">=</span> <span class="s1">&#39;/path/to/save/your/screen/capture/file.jpg&#39;</span><span class="p">;</span>
    
    <span class="nv">$top</span>    <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
    <span class="nv">$left</span>   <span class="o">=</span> <span class="mi">10</span><span class="p">;</span>
    <span class="nv">$width</span>  <span class="o">=</span> <span class="mi">200</span><span class="p">;</span>
    <span class="nv">$height</span> <span class="o">=</span> <span class="mi">400</span><span class="p">;</span>
    
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setCaptureFile</span><span class="p">(</span><span class="nv">$file</span><span class="p">);</span>
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setCaptureDimensions</span><span class="p">(</span><span class="nv">$width</span><span class="p">,</span> <span class="nv">$height</span><span class="p">,</span> <span class="nv">$top</span><span class="p">,</span> <span class="nv">$left</span><span class="p">);</span>
    
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span></code></pre></div>

<h2 id="custom-timeout">Custom Timeout</h2>

<p>By default, each request will timeout after 5 seconds. You can set a custom timeout period (in milliseconds) for each request:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>

    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createRequest</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">);</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>
    
    <span class="nv">$timeout</span> <span class="o">=</span> <span class="mi">10000</span><span class="p">;</span> <span class="c1">// 10 seconds</span>
    
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setTimeout</span><span class="p">(</span><span class="nv">$timeout</span><span class="p">);</span>
    
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span></code></pre></div>

<h2 id="delay-page-render">Delay Page Render</h2>

<p>Sometimes when taking screen captures you may want to wait until the page is completely loaded before saving the capture. In this instance you can set a page render delay (in seconds) for the request:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>

    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createCaptureRequest</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">);</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>
    
    <span class="nv">$delay</span> <span class="o">=</span> <span class="mi">5</span><span class="p">;</span> <span class="c1">// 5 seconds</span>
    
    <span class="nv">$request</span><span class="o">-&gt;</span><span class="na">setDelay</span><span class="p">(</span><span class="nv">$delay</span><span class="p">);</span>
    
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span></code></pre></div>

<p>You can set a page render delay for standard requests also.</p>

<h2 id="custom-run-options">Custom Run Options</h2>

<p>The PhantomJS API contains a range of command line options that can be passed when executing the PhantomJS executable. These can also be passed in via the client before a request:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>

    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">addOption</span><span class="p">(</span><span class="s1">&#39;--load-images=true&#39;</span><span class="p">);</span>
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">addOption</span><span class="p">(</span><span class="s1">&#39;--ignore-ssl-errors=true&#39;</span><span class="p">);</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createRequest</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">);</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>

    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span></code></pre></div>

<p>You can also set a path to a JSON configuration file that contains multiple PhantomJS options:</p>

<div class="highlight"><pre><code class="language-php" data-lang="php"><span class="cp">&lt;?php</span>

    <span class="k">use</span> <span class="nx">JonnyW\PhantomJs\Client</span><span class="p">;</span>
    
    <span class="nv">$client</span> <span class="o">=</span> <span class="nx">Client</span><span class="o">::</span><span class="na">getInstance</span><span class="p">();</span>
    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">addOption</span><span class="p">(</span><span class="s1">&#39;--config=/path/to/config.json&#39;</span><span class="p">);</span>
    
    <span class="nv">$request</span>  <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createRequest</span><span class="p">(</span><span class="s1">&#39;http://google.com&#39;</span><span class="p">);</span>
    <span class="nv">$response</span> <span class="o">=</span> <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">getMessageFactory</span><span class="p">()</span><span class="o">-&gt;</span><span class="na">createResponse</span><span class="p">();</span>

    <span class="nv">$client</span><span class="o">-&gt;</span><span class="na">send</span><span class="p">(</span><span class="nv">$request</span><span class="p">,</span> <span class="nv">$response</span><span class="p">);</span></code></pre></div>

<p>See the <a href="http://phantomjs.org/api/command-line.html">PhantomJS Documentation</a> for a full list of command line options.</p>

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