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<h1>Examples</h1>
<h2>Table of Contents</h2><ul class="chunklist chunklist_chapter"><li><a href="stream.streamwrapper.example-1.html">Example class registered as stream wrapper</a></li></ul>
<p class="para">
<div class="example" id="example-4004">
<p><strong>Example #1 Using <span class="function"><a href="function.file-get-contents.html" class="function">file_get_contents()</a></span>
to retrieve data from multiple sources</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">/* Read local file from /home/bar */<br /></span><span style="color: #0000BB">$localfile </span><span style="color: #007700">= </span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #DD0000">"/home/bar/foo.txt"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Identical to above, explicitly naming FILE scheme */<br /></span><span style="color: #0000BB">$localfile </span><span style="color: #007700">= </span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #DD0000">"file:///home/bar/foo.txt"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Read remote file from www.example.com using HTTP */<br /></span><span style="color: #0000BB">$httpfile </span><span style="color: #007700">= </span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #DD0000">"http://www.example.com/foo.txt"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Read remote file from www.example.com using HTTPS */<br /></span><span style="color: #0000BB">$httpsfile </span><span style="color: #007700">= </span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #DD0000">"https://www.example.com/foo.txt"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Read remote file from ftp.example.com using FTP */<br /></span><span style="color: #0000BB">$ftpfile </span><span style="color: #007700">= </span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #DD0000">"ftp://user:pass@ftp.example.com/foo.txt"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* Read remote file from ftp.example.com using FTPS */<br /></span><span style="color: #0000BB">$ftpsfile </span><span style="color: #007700">= </span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #DD0000">"ftps://user:pass@ftp.example.com/foo.txt"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
<p class="para">
<div class="example" id="example-4005">
<p><strong>Example #2 Making a POST request to an https server</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">/* Send POST request to https://secure.example.com/form_action.php<br />* Include form elements named "foo" and "bar" with dummy values<br />*/<br /><br /></span><span style="color: #0000BB">$sock </span><span style="color: #007700">= </span><span style="color: #0000BB">fsockopen</span><span style="color: #007700">(</span><span style="color: #DD0000">"ssl://secure.example.com"</span><span style="color: #007700">, </span><span style="color: #0000BB">443</span><span style="color: #007700">, </span><span style="color: #0000BB">$errno</span><span style="color: #007700">, </span><span style="color: #0000BB">$errstr</span><span style="color: #007700">, </span><span style="color: #0000BB">30</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$sock</span><span style="color: #007700">) die(</span><span style="color: #DD0000">"</span><span style="color: #0000BB">$errstr</span><span style="color: #DD0000"> (</span><span style="color: #0000BB">$errno</span><span style="color: #DD0000">)\n"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$data </span><span style="color: #007700">= </span><span style="color: #DD0000">"foo=" </span><span style="color: #007700">. </span><span style="color: #0000BB">urlencode</span><span style="color: #007700">(</span><span style="color: #DD0000">"Value for Foo"</span><span style="color: #007700">) . </span><span style="color: #DD0000">"&bar=" </span><span style="color: #007700">. </span><span style="color: #0000BB">urlencode</span><span style="color: #007700">(</span><span style="color: #DD0000">"Value for Bar"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #DD0000">"POST /form_action.php HTTP/1.0\r\n"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #DD0000">"Host: secure.example.com\r\n"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #DD0000">"Content-type: application/x-www-form-urlencoded\r\n"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #DD0000">"Content-length: " </span><span style="color: #007700">. </span><span style="color: #0000BB">strlen</span><span style="color: #007700">(</span><span style="color: #0000BB">$data</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\r\n"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #DD0000">"Accept: */*\r\n"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #DD0000">"\r\n"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$headers </span><span style="color: #007700">= </span><span style="color: #DD0000">""</span><span style="color: #007700">;<br />while (</span><span style="color: #0000BB">$str </span><span style="color: #007700">= </span><span style="color: #0000BB">trim</span><span style="color: #007700">(</span><span style="color: #0000BB">fgets</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #0000BB">4096</span><span style="color: #007700">)))<br /></span><span style="color: #0000BB">$headers </span><span style="color: #007700">.= </span><span style="color: #DD0000">"</span><span style="color: #0000BB">$str</span><span style="color: #DD0000">\n"</span><span style="color: #007700">;<br /><br />echo </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$body </span><span style="color: #007700">= </span><span style="color: #DD0000">""</span><span style="color: #007700">;<br />while (!</span><span style="color: #0000BB">feof</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">))<br /></span><span style="color: #0000BB">$body </span><span style="color: #007700">.= </span><span style="color: #0000BB">fgets</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">, </span><span style="color: #0000BB">4096</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$sock</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
<p class="para">
<div class="example" id="example-4006">
<p><strong>Example #3 Writing data to a compressed file</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">/* Create a compressed file containing an arbitrarty string<br />* File can be read back using compress.zlib stream or just<br />* decompressed from the command line using 'gzip -d foo-bar.txt.gz'<br />*/<br /></span><span style="color: #0000BB">$fp </span><span style="color: #007700">= </span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #DD0000">"compress.zlib://foo-bar.txt.gz"</span><span style="color: #007700">, </span><span style="color: #DD0000">"wb"</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$fp</span><span style="color: #007700">) die(</span><span style="color: #DD0000">"Unable to create file."</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #DD0000">"This is a test.\n"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
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