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diff --git a/user_guide/helpers/file_helper.html b/user_guide/helpers/file_helper.html deleted file mode 100644 index f48770ebf..000000000 --- a/user_guide/helpers/file_helper.html +++ /dev/null @@ -1,829 +0,0 @@ - - -<!DOCTYPE html> -<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> -<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> -<head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1.0"> - - <title>File Helper — CodeIgniter 3.1.9 documentation</title> - - - - - <link rel="shortcut icon" href="../_static/ci-icon.ico"/> - - - - <link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'> - - - - - - - - - - <link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" /> - - - - <link rel="index" title="Index" - href="../genindex.html"/> - <link rel="search" 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class="reference internal" href="typography_helper.html">Typography Helper</a></li> -<li class="toctree-l2"><a class="reference internal" href="url_helper.html">URL Helper</a></li> -<li class="toctree-l2"><a class="reference internal" href="xml_helper.html">XML Helper</a></li> -</ul> -</li> -</ul> - - - - </div> - - </nav> - - <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap"> - - - <nav class="wy-nav-top" role="navigation" aria-label="top navigation"> - <i data-toggle="wy-nav-top" class="fa fa-bars"></i> - <a href="../index.html">CodeIgniter</a> - </nav> - - - - <div class="wy-nav-content"> - <div class="rst-content"> - <div role="navigation" aria-label="breadcrumbs navigation"> - <ul class="wy-breadcrumbs"> - <li><a href="../index.html">Docs</a> »</li> - - <li><a href="index.html">Helpers</a> »</li> - - <li>File Helper</li> - <li class="wy-breadcrumbs-aside"> - - </li> - <div style="float:right;margin-left:5px;" id="closeMe"> - <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" /> - </div> - </ul> - <hr/> -</div> - <div role="main" class="document"> - - <div class="section" id="file-helper"> -<h1>File Helper<a class="headerlink" href="#file-helper" title="Permalink to this headline">¶</a></h1> -<p>The File Helper file contains functions that assist in working with files.</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">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">helper</span><span class="p">(</span><span class="s1">'file'</span><span class="p">);</span> -</pre></div> -</div> -</div> -<div class="section" id="available-functions"> -<h2><a class="toc-backref" href="#id2">Available Functions</a><a class="headerlink" href="#available-functions" title="Permalink to this headline">¶</a></h2> -<p>The following functions are available:</p> -<dl class="function"> -<dt id="read_file"> -<code class="descname">read_file</code><span class="sig-paren">(</span><em>$file</em><span class="sig-paren">)</span><a class="headerlink" href="#read_file" 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>$file</strong> (<em>string</em>) – File path</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">File contents or FALSE on failure</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p> -</td> -</tr> -</tbody> -</table> -<p>Returns the data contained in the file specified in the path.</p> -<p>Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nx">read_file</span><span class="p">(</span><span class="s1">'./path/to/file.php'</span><span class="p">);</span> -</pre></div> -</div> -<p>The path can be a relative or full server path. Returns FALSE (boolean) on failure.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">The path is relative to your main site index.php file, NOT your -controller or view files. CodeIgniter uses a front controller so paths -are always relative to the main site index.</p> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This function is DEPRECATED. Use the native <code class="docutils literal"><span class="pre">file_get_contents()</span></code> -instead.</p> -</div> -<div class="admonition important"> -<p class="first admonition-title">Important</p> -<p class="last">If your server is running an <strong>open_basedir</strong> restriction this -function might not work if you are trying to access a file above the -calling script.</p> -</div> -</dd></dl> - -<dl class="function"> -<dt id="write_file"> -<code class="descname">write_file</code><span class="sig-paren">(</span><em>$path</em>, <em>$data</em><span class="optional">[</span>, <em>$mode = 'wb'</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#write_file" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$path</strong> (<em>string</em>) – File path</li> -<li><strong>$data</strong> (<em>string</em>) – Data to write to file</li> -<li><strong>$mode</strong> (<em>string</em>) – <code class="docutils literal"><span class="pre">fopen()</span></code> mode</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE if the write was successful, FALSE in case of an error</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> -</td> -</tr> -</tbody> -</table> -<p>Writes data to the file specified in the path. If the file does not exist then the -function will create it.</p> -<p>Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="s1">'Some file data'</span><span class="p">;</span> -<span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nx">write_file</span><span class="p">(</span><span class="s1">'./path/to/file.php'</span><span class="p">,</span> <span class="nv">$data</span><span class="p">))</span> -<span class="p">{</span> - <span class="k">echo</span> <span class="s1">'Unable to write the file'</span><span class="p">;</span> -<span class="p">}</span> -<span class="k">else</span> -<span class="p">{</span> - <span class="k">echo</span> <span class="s1">'File written!'</span><span class="p">;</span> -<span class="p">}</span> -</pre></div> -</div> -<p>You can optionally set the write mode via the third parameter:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">write_file</span><span class="p">(</span><span class="s1">'./path/to/file.php'</span><span class="p">,</span> <span class="nv">$data</span><span class="p">,</span> <span class="s1">'r+'</span><span class="p">);</span> -</pre></div> -</div> -<p>The default mode is ‘wb’. Please see the <a class="reference external" href="http://php.net/manual/en/function.fopen.php">PHP user guide</a> -for mode options.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">The path is relative to your main site index.php file, NOT your -controller or view files. CodeIgniter uses a front controller so paths -are always relative to the main site index.</p> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This function acquires an exclusive lock on the file while writing to it.</p> -</div> -</dd></dl> - -<dl class="function"> -<dt id="delete_files"> -<code class="descname">delete_files</code><span class="sig-paren">(</span><em>$path</em><span class="optional">[</span>, <em>$del_dir = FALSE</em><span class="optional">[</span>, <em>$htdocs = FALSE</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#delete_files" 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>$path</strong> (<em>string</em>) – Directory path</li> -<li><strong>$del_dir</strong> (<em>bool</em>) – Whether to also delete directories</li> -<li><strong>$htdocs</strong> (<em>bool</em>) – Whether to skip deleting .htaccess and index page files</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE in case of an error</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> -</td> -</tr> -</tbody> -</table> -<p>Deletes ALL files contained in the supplied path.</p> -<p>Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">delete_files</span><span class="p">(</span><span class="s1">'./path/to/directory/'</span><span class="p">);</span> -</pre></div> -</div> -<p>If the second parameter is set to TRUE, any directories contained within the supplied -root path will be deleted as well.</p> -<p>Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nx">delete_files</span><span class="p">(</span><span class="s1">'./path/to/directory/'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">The files must be writable or owned by the system in order to be deleted.</p> -</div> -</dd></dl> - -<dl class="function"> -<dt id="get_filenames"> -<code class="descname">get_filenames</code><span class="sig-paren">(</span><em>$source_dir</em><span class="optional">[</span>, <em>$include_path = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#get_filenames" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$source_dir</strong> (<em>string</em>) – Directory path</li> -<li><strong>$include_path</strong> (<em>bool</em>) – Whether to include the path as part of the filenames</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An array of file names</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> -</td> -</tr> -</tbody> -</table> -<p>Takes a server path as input and returns an array containing the names of all files -contained within it. The file path can optionally be added to the file names by setting -the second parameter to TRUE.</p> -<p>Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$controllers</span> <span class="o">=</span> <span class="nx">get_filenames</span><span class="p">(</span><span class="nx">APPPATH</span><span class="o">.</span><span class="s1">'controllers/'</span><span class="p">);</span> -</pre></div> -</div> -</dd></dl> - -<dl class="function"> -<dt id="get_dir_file_info"> -<code class="descname">get_dir_file_info</code><span class="sig-paren">(</span><em>$source_dir</em>, <em>$top_level_only</em><span class="sig-paren">)</span><a class="headerlink" href="#get_dir_file_info" 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>$source_dir</strong> (<em>string</em>) – Directory path</li> -<li><strong>$top_level_only</strong> (<em>bool</em>) – Whether to look only at the specified directory (excluding sub-directories)</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An array containing info on the supplied directory’s contents</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> -</td> -</tr> -</tbody> -</table> -<p>Reads the specified directory and builds an array containing the filenames, filesize, -dates, and permissions. Sub-folders contained within the specified path are only read -if forced by sending the second parameter to FALSE, as this can be an intensive -operation.</p> -<p>Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$models_info</span> <span class="o">=</span> <span class="nx">get_dir_file_info</span><span class="p">(</span><span class="nx">APPPATH</span><span class="o">.</span><span class="s1">'models/'</span><span class="p">);</span> -</pre></div> -</div> -</dd></dl> - -<dl class="function"> -<dt id="get_file_info"> -<code class="descname">get_file_info</code><span class="sig-paren">(</span><em>$file</em><span class="optional">[</span>, <em>$returned_values = array('name'</em>, <em>'server_path'</em>, <em>'size'</em>, <em>'date')</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#get_file_info" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$file</strong> (<em>string</em>) – File path</li> -<li><strong>$returned_values</strong> (<em>array</em>) – What type of info to return</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An array containing info on the specified file or FALSE on failure</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> -</td> -</tr> -</tbody> -</table> -<p>Given a file and path, returns (optionally) the <em>name</em>, <em>path</em>, <em>size</em> and <em>date modified</em> -information attributes for a file. Second parameter allows you to explicitly declare what -information you want returned.</p> -<p>Valid <code class="docutils literal"><span class="pre">$returned_values</span></code> options are: <cite>name</cite>, <cite>size</cite>, <cite>date</cite>, <cite>readable</cite>, <cite>writeable</cite>, -<cite>executable</cite> and <cite>fileperms</cite>.</p> -</dd></dl> - -<dl class="function"> -<dt id="get_mime_by_extension"> -<code class="descname">get_mime_by_extension</code><span class="sig-paren">(</span><em>$filename</em><span class="sig-paren">)</span><a class="headerlink" href="#get_mime_by_extension" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$filename</strong> (<em>string</em>) – File name</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">MIME type string or FALSE on failure</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>Translates a filename extension into a MIME type based on <em>config/mimes.php</em>. -Returns FALSE if it can’t determine the type, or read the MIME config file.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$file</span> <span class="o">=</span> <span class="s1">'somefile.png'</span><span class="p">;</span> -<span class="k">echo</span> <span class="nv">$file</span><span class="o">.</span><span class="s1">' is has a mime type of '</span><span class="o">.</span><span class="nx">get_mime_by_extension</span><span class="p">(</span><span class="nv">$file</span><span class="p">);</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This is not an accurate way of determining file MIME types, and -is here strictly for convenience. It should not be used for security -purposes.</p> -</div> -</dd></dl> - -<dl class="function"> -<dt id="symbolic_permissions"> -<code class="descname">symbolic_permissions</code><span class="sig-paren">(</span><em>$perms</em><span class="sig-paren">)</span><a class="headerlink" href="#symbolic_permissions" 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>$perms</strong> (<em>int</em>) – Permissions</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Symbolic permissions string</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p> -</td> -</tr> -</tbody> -</table> -<p>Takes numeric permissions (such as is returned by <code class="docutils literal"><span class="pre">fileperms()</span></code>) and returns -standard symbolic notation of file permissions.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nx">symbolic_permissions</span><span class="p">(</span><span class="nb">fileperms</span><span class="p">(</span><span class="s1">'./index.php'</span><span class="p">));</span> <span class="c1">// -rw-r--r--</span> -</pre></div> -</div> -</dd></dl> - -<dl class="function"> -<dt id="octal_permissions"> -<code class="descname">octal_permissions</code><span class="sig-paren">(</span><em>$perms</em><span class="sig-paren">)</span><a class="headerlink" href="#octal_permissions" 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>$perms</strong> (<em>int</em>) – Permissions</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Octal permissions string</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>Takes numeric permissions (such as is returned by <code class="docutils literal"><span class="pre">fileperms()</span></code>) and returns -a three character octal notation of file permissions.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nx">octal_permissions</span><span class="p">(</span><span class="nb">fileperms</span><span class="p">(</span><span class="s1">'./index.php'</span><span class="p">));</span> <span class="c1">// 644</span> -</pre></div> -</div> -</dd></dl> - -</div> -</div> - - - </div> - <footer> - - <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> - - <a href="form_helper.html" class="btn btn-neutral float-right" title="Form Helper">Next <span class="fa fa-arrow-circle-right"></span></a> - - - <a href="email_helper.html" class="btn btn-neutral" title="Email Helper"><span class="fa fa-arrow-circle-left"></span> Previous</a> - - </div> - - - <hr/> - - <div role="contentinfo"> - <p> - © Copyright 2014 - 2018, British Columbia Institute of Technology. - Last updated on Jun 12, 2018. - </p> - </div> - - Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. - -</footer> - </div> - </div> - - </section> - - </div> - - - - - - <script type="text/javascript"> - var DOCUMENTATION_OPTIONS = { - URL_ROOT:'../', - VERSION:'3.1.9', - COLLAPSE_INDEX:false, - FILE_SUFFIX:'.html', - HAS_SOURCE: false - }; - </script> - <script type="text/javascript" src="../_static/jquery.js"></script> - <script type="text/javascript" src="../_static/underscore.js"></script> - <script type="text/javascript" src="../_static/doctools.js"></script> - - - - - - <script type="text/javascript" src="../_static/js/theme.js"></script> - - - - - <script type="text/javascript"> - jQuery(function () { - SphinxRtdTheme.StickyNav.enable(); - }); - </script> - - -</body> -</html>
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