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<div class="section" id="path-helper">
<h1>Path Helper<a class="headerlink" href="#path-helper" title="Permalink to this headline">¶</a></h1>
<p>The Path Helper file contains functions that permits you to work with
file paths on the server.</p>
<div class="contents local topic" id="contents">
<ul class="simple">
<li><a class="reference internal" href="#loading-this-helper" id="id1">Loading this Helper</a></li>
<li><a class="reference internal" href="#available-functions" id="id2">Available Functions</a></li>
</ul>
</div>
<div class="custom-index container"></div><div class="section" id="loading-this-helper">
<h2><a class="toc-backref" href="#id1">Loading this Helper</a><a class="headerlink" href="#loading-this-helper" title="Permalink to this headline">¶</a></h2>
<p>This helper is loaded using the following code:</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">helper</span><span class="p">(</span><span class="s1">'path'</span><span class="p">);</span>
</pre></div>
</div>
</div>
<div class="section" id="available-functions">
<h2><a class="toc-backref" href="#id2">Available Functions</a><a class="headerlink" href="#available-functions" title="Permalink to this headline">¶</a></h2>
<p>The following functions are available:</p>
<dl class="function">
<dt id="set_realpath">
<code class="descname">set_realpath</code><span class="sig-paren">(</span><em>$path</em><span class="optional">[</span>, <em>$check_existance = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#set_realpath" title="Permalink to this definition">¶</a></dt>
<dd><table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>$path</strong> (<em>string</em>) – Path</li>
<li><strong>$check_existance</strong> (<em>bool</em>) – Whether to check if the path actually exists</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An absolute path</p>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
</td>
</tr>
</tbody>
</table>
<p>This function will return a server path without symbolic links or
relative directory structures. An optional second argument will
cause an error to be triggered if the path cannot be resolved.</p>
<p>Examples:</p>
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$file</span> <span class="o">=</span> <span class="s1">'/etc/php5/apache2/php.ini'</span><span class="p">;</span>
<span class="k">echo</span> <span class="nx">set_realpath</span><span class="p">(</span><span class="nv">$file</span><span class="p">);</span> <span class="c1">// Prints '/etc/php5/apache2/php.ini'</span>
<span class="nv">$non_existent_file</span> <span class="o">=</span> <span class="s1">'/path/to/non-exist-file.txt'</span><span class="p">;</span>
<span class="k">echo</span> <span class="nx">set_realpath</span><span class="p">(</span><span class="nv">$non_existent_file</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// Shows an error, as the path cannot be resolved</span>
<span class="k">echo</span> <span class="nx">set_realpath</span><span class="p">(</span><span class="nv">$non_existent_file</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> <span class="c1">// Prints '/path/to/non-exist-file.txt'</span>
<span class="nv">$directory</span> <span class="o">=</span> <span class="s1">'/etc/php5'</span><span class="p">;</span>
<span class="k">echo</span> <span class="nx">set_realpath</span><span class="p">(</span><span class="nv">$directory</span><span class="p">);</span> <span class="c1">// Prints '/etc/php5/'</span>
<span class="nv">$non_existent_directory</span> <span class="o">=</span> <span class="s1">'/path/to/nowhere'</span><span class="p">;</span>
<span class="k">echo</span> <span class="nx">set_realpath</span><span class="p">(</span><span class="nv">$non_existent_directory</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// Shows an error, as the path cannot be resolved</span>
<span class="k">echo</span> <span class="nx">set_realpath</span><span class="p">(</span><span class="nv">$non_existent_directory</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> <span class="c1">// Prints '/path/to/nowhere'</span>
</pre></div>
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