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| author | Andrey Andreev <narf@devilix.net> | 2018-03-22 15:48:55 +0100 |
|---|---|---|
| committer | Andrey Andreev <narf@devilix.net> | 2018-03-22 15:48:55 +0100 |
| commit | 71e647782764184e3aab4faffe6d99176758979f (patch) | |
| tree | 74dbdd50a61cd5674915c144aca9ebbc00b235b8 /user_guide/libraries/zip.html | |
| parent | b12fbad77bd69ca0c7624a9094c29b7691ea6107 (diff) | |
[ci skip] 3.1.8 release
Diffstat (limited to 'user_guide/libraries/zip.html')
| -rw-r--r-- | user_guide/libraries/zip.html | 846 |
1 files changed, 846 insertions, 0 deletions
diff --git a/user_guide/libraries/zip.html b/user_guide/libraries/zip.html new file mode 100644 index 000000000..d80bad7f0 --- /dev/null +++ b/user_guide/libraries/zip.html @@ -0,0 +1,846 @@ + + +<!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>Zip Encoding Class — CodeIgniter 3.1.8 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" title="Search" 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+<li class="toctree-l2"><a class="reference internal" href="../helpers/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">Libraries</a> »</li> + + <li>Zip Encoding Class</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="zip-encoding-class"> +<h1>Zip Encoding Class<a class="headerlink" href="#zip-encoding-class" title="Permalink to this headline">¶</a></h1> +<p>CodeIgniter’s Zip Encoding Class permits you to create Zip archives. +Archives can be downloaded to your desktop or saved to a directory.</p> +<div class="contents local topic" id="contents"> +<ul class="simple"> +<li><a class="reference internal" href="#using-the-zip-encoding-class" id="id1">Using the Zip Encoding Class</a><ul> +<li><a class="reference internal" href="#initializing-the-class" id="id2">Initializing the Class</a></li> +<li><a class="reference internal" href="#usage-example" id="id3">Usage Example</a></li> +</ul> +</li> +<li><a class="reference internal" href="#class-reference" id="id4">Class Reference</a></li> +</ul> +</div> +<div class="custom-index container"></div><div class="section" id="using-the-zip-encoding-class"> +<h2><a class="toc-backref" href="#id1">Using the Zip Encoding Class</a><a class="headerlink" href="#using-the-zip-encoding-class" title="Permalink to this headline">¶</a></h2> +<div class="section" id="initializing-the-class"> +<h3><a class="toc-backref" href="#id2">Initializing the Class</a><a class="headerlink" href="#initializing-the-class" title="Permalink to this headline">¶</a></h3> +<p>Like most other classes in CodeIgniter, the Zip class is initialized in +your controller using the $this->load->library function:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">library</span><span class="p">(</span><span class="s1">'zip'</span><span class="p">);</span> +</pre></div> +</div> +<p>Once loaded, the Zip library object will be available using:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">zip</span> +</pre></div> +</div> +</div> +<div class="section" id="usage-example"> +<h3><a class="toc-backref" href="#id3">Usage Example</a><a class="headerlink" href="#usage-example" title="Permalink to this headline">¶</a></h3> +<p>This example demonstrates how to compress a file, save it to a folder on +your server, and download it to your desktop.</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$name</span> <span class="o">=</span> <span class="s1">'mydata1.txt'</span><span class="p">;</span> +<span class="nv">$data</span> <span class="o">=</span> <span class="s1">'A Data String!'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">add_data</span><span class="p">(</span><span class="nv">$name</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span> + +<span class="c1">// Write the zip file to a folder on your server. Name it "my_backup.zip"</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">archive</span><span class="p">(</span><span class="s1">'/path/to/directory/my_backup.zip'</span><span class="p">);</span> + +<span class="c1">// Download the file to your desktop. Name it "my_backup.zip"</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">download</span><span class="p">(</span><span class="s1">'my_backup.zip'</span><span class="p">);</span> +</pre></div> +</div> +</div> +</div> +<div class="section" id="class-reference"> +<h2><a class="toc-backref" href="#id4">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2> +<dl class="class"> +<dt id="CI_Zip"> +<em class="property">class </em><code class="descname">CI_Zip</code><a class="headerlink" href="#CI_Zip" title="Permalink to this definition">¶</a></dt> +<dd><dl class="attribute"> +<dt> +<code class="descname">$compression_level = 2</code></dt> +<dd><p>The compression level to use.</p> +<p>It can range from 0 to 9, with 9 being the highest and 0 effectively disabling compression:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">compression_level</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> +</pre></div> +</div> +</dd></dl> + +<dl class="method"> +<dt id="CI_Zip::add_data"> +<code class="descname">add_data</code><span class="sig-paren">(</span><em>$filepath</em><span class="optional">[</span>, <em>$data = NULL</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Zip::add_data" 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>$filepath</strong> (<em>mixed</em>) – A single file path or an array of file => data pairs</li> +<li><strong>$data</strong> (<em>array</em>) – File contents (ignored if $filepath is an array)</li> +</ul> +</td> +</tr> +<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p> +</td> +</tr> +</tbody> +</table> +<p>Adds data to the Zip archive. Can work both in single and multiple files mode.</p> +<p>When adding a single file, the first parameter must contain the name you would +like given to the file and the second must contain the file contents:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$name</span> <span class="o">=</span> <span class="s1">'mydata1.txt'</span><span class="p">;</span> +<span class="nv">$data</span> <span class="o">=</span> <span class="s1">'A Data String!'</span><span class="p">;</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">add_data</span><span class="p">(</span><span class="nv">$name</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span> + +<span class="nv">$name</span> <span class="o">=</span> <span class="s1">'mydata2.txt'</span><span class="p">;</span> +<span class="nv">$data</span> <span class="o">=</span> <span class="s1">'Another Data String!'</span><span class="p">;</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">add_data</span><span class="p">(</span><span class="nv">$name</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span> +</pre></div> +</div> +<p>When adding multiple files, the first parameter must contain <em>file => contents</em> pairs +and the second parameter is ignored:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$data</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> + <span class="s1">'mydata1.txt'</span> <span class="o">=></span> <span class="s1">'A Data String!'</span><span class="p">,</span> + <span class="s1">'mydata2.txt'</span> <span class="o">=></span> <span class="s1">'Another Data String!'</span> +<span class="p">);</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">add_data</span><span class="p">(</span><span class="nv">$data</span><span class="p">);</span> +</pre></div> +</div> +<p>If you would like your compressed data organized into sub-directories, simply include +the path as part of the filename(s):</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$name</span> <span class="o">=</span> <span class="s1">'personal/my_bio.txt'</span><span class="p">;</span> +<span class="nv">$data</span> <span class="o">=</span> <span class="s1">'I was born in an elevator...'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">add_data</span><span class="p">(</span><span class="nv">$name</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span> +</pre></div> +</div> +<p>The above example will place my_bio.txt inside a folder called personal.</p> +</dd></dl> + +<dl class="method"> +<dt id="CI_Zip::add_dir"> +<code class="descname">add_dir</code><span class="sig-paren">(</span><em>$directory</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Zip::add_dir" 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>$directory</strong> (<em>mixed</em>) – Directory name string or an array of multiple directories</li> +</ul> +</td> +</tr> +<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p> +</td> +</tr> +</tbody> +</table> +<p>Permits you to add a directory. Usually this method is unnecessary since you can place +your data into directories when using <code class="docutils literal"><span class="pre">$this->zip->add_data()</span></code>, but if you would like +to create an empty directory you can do so:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">add_dir</span><span class="p">(</span><span class="s1">'myfolder'</span><span class="p">);</span> <span class="c1">// Creates a directory called "myfolder"</span> +</pre></div> +</div> +</dd></dl> + +<dl class="method"> +<dt id="CI_Zip::read_file"> +<code class="descname">read_file</code><span class="sig-paren">(</span><em>$path</em><span class="optional">[</span>, <em>$archive_filepath = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Zip::read_file" title="Permalink to this definition">¶</a></dt> +<dd><table class="docutils field-list" frame="void" rules="none"> +<col class="field-name" /> +<col class="field-body" /> +<tbody valign="top"> +<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> +<li><strong>$path</strong> (<em>string</em>) – Path to file</li> +<li><strong>$archive_filepath</strong> (<em>mixed</em>) – New file name/path (string) or (boolean) whether to maintain the original filepath</li> +</ul> +</td> +</tr> +<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p> +</td> +</tr> +<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> +</td> +</tr> +</tbody> +</table> +<p>Permits you to compress a file that already exists somewhere on your server. +Supply a file path and the zip class will read it and add it to the archive:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$path</span> <span class="o">=</span> <span class="s1">'/path/to/photo.jpg'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">read_file</span><span class="p">(</span><span class="nv">$path</span><span class="p">);</span> + +<span class="c1">// Download the file to your desktop. Name it "my_backup.zip"</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">download</span><span class="p">(</span><span class="s1">'my_backup.zip'</span><span class="p">);</span> +</pre></div> +</div> +<p>If you would like the Zip archive to maintain the directory structure of +the file in it, pass TRUE (boolean) in the second parameter. Example:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$path</span> <span class="o">=</span> <span class="s1">'/path/to/photo.jpg'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">read_file</span><span class="p">(</span><span class="nv">$path</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> + +<span class="c1">// Download the file to your desktop. Name it "my_backup.zip"</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">download</span><span class="p">(</span><span class="s1">'my_backup.zip'</span><span class="p">);</span> +</pre></div> +</div> +<p>In the above example, photo.jpg will be placed into the <em>path/to/</em> directory.</p> +<p>You can also specify a new name (path included) for the added file on the fly:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$path</span> <span class="o">=</span> <span class="s1">'/path/to/photo.jpg'</span><span class="p">;</span> +<span class="nv">$new_path</span> <span class="o">=</span> <span class="s1">'/new/path/some_photo.jpg'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">read_file</span><span class="p">(</span><span class="nv">$path</span><span class="p">,</span> <span class="nv">$new_path</span><span class="p">);</span> + +<span class="c1">// Download ZIP archive containing /new/path/some_photo.jpg</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">download</span><span class="p">(</span><span class="s1">'my_archive.zip'</span><span class="p">);</span> +</pre></div> +</div> +</dd></dl> + +<dl class="method"> +<dt id="CI_Zip::read_dir"> +<code class="descname">read_dir</code><span class="sig-paren">(</span><em>$path</em><span class="optional">[</span>, <em>$preserve_filepath = TRUE</em><span class="optional">[</span>, <em>$root_path = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Zip::read_dir" 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>$path</strong> (<em>string</em>) – Path to directory</li> +<li><strong>$preserve_filepath</strong> (<em>bool</em>) – Whether to maintain the original path</li> +<li><strong>$root_path</strong> (<em>string</em>) – Part of the path to exclude from the archive directory</li> +</ul> +</td> +</tr> +<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE on success, FALSE on failure</p> +</td> +</tr> +<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> +</td> +</tr> +</tbody> +</table> +<p>Permits you to compress a directory (and its contents) that already exists somewhere on your server. +Supply a path to the directory and the zip class will recursively read and recreate it as a Zip archive. +All files contained within the supplied path will be encoded, as will any sub-directories contained within it. Example:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$path</span> <span class="o">=</span> <span class="s1">'/path/to/your/directory/'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">read_dir</span><span class="p">(</span><span class="nv">$path</span><span class="p">);</span> + +<span class="c1">// Download the file to your desktop. Name it "my_backup.zip"</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">download</span><span class="p">(</span><span class="s1">'my_backup.zip'</span><span class="p">);</span> +</pre></div> +</div> +<p>By default the Zip archive will place all directories listed in the first parameter +inside the zip. If you want the tree preceding the target directory to be ignored, +you can pass FALSE (boolean) in the second parameter. Example:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$path</span> <span class="o">=</span> <span class="s1">'/path/to/your/directory/'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">read_dir</span><span class="p">(</span><span class="nv">$path</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> +</pre></div> +</div> +<p>This will create a ZIP with a directory named “directory” inside, then all sub-directories +stored correctly inside that, but will not include the <em>/path/to/your</em> part of the path.</p> +</dd></dl> + +<dl class="method"> +<dt id="CI_Zip::archive"> +<code class="descname">archive</code><span class="sig-paren">(</span><em>$filepath</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Zip::archive" title="Permalink to this definition">¶</a></dt> +<dd><table class="docutils field-list" frame="void" rules="none"> +<col class="field-name" /> +<col class="field-body" /> +<tbody valign="top"> +<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> +<li><strong>$filepath</strong> (<em>string</em>) – Path to target zip archive</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 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">bool</p> +</td> +</tr> +</tbody> +</table> +<p>Writes the Zip-encoded file to a directory on your server. Submit a valid server path +ending in the file name. Make sure the directory is writable (755 is usually OK). +Example:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">archive</span><span class="p">(</span><span class="s1">'/path/to/folder/myarchive.zip'</span><span class="p">);</span> <span class="c1">// Creates a file named myarchive.zip</span> +</pre></div> +</div> +</dd></dl> + +<dl class="method"> +<dt id="CI_Zip::download"> +<code class="descname">download</code><span class="sig-paren">(</span><em>$filename = 'backup.zip'</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Zip::download" 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>$filename</strong> (<em>string</em>) – Archive file name</li> +</ul> +</td> +</tr> +<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p> +</td> +</tr> +</tbody> +</table> +<p>Causes the Zip file to be downloaded from your server. +You must pass the name you would like the zip file called. Example:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">download</span><span class="p">(</span><span class="s1">'latest_stuff.zip'</span><span class="p">);</span> <span class="c1">// File will be named "latest_stuff.zip"</span> +</pre></div> +</div> +<div class="admonition note"> +<p class="first admonition-title">Note</p> +<p class="last">Do not display any data in the controller in which you call +this method since it sends various server headers that cause the +download to happen and the file to be treated as binary.</p> +</div> +</dd></dl> + +<dl class="method"> +<dt id="CI_Zip::get_zip"> +<code class="descname">get_zip</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Zip::get_zip" 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">Returns:</th><td class="field-body">Zip file content</td> +</tr> +<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td> +</tr> +</tbody> +</table> +<p>Returns the Zip-compressed file data. Generally you will not need this method unless you +want to do something unique with the data. Example:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$name</span> <span class="o">=</span> <span class="s1">'my_bio.txt'</span><span class="p">;</span> +<span class="nv">$data</span> <span class="o">=</span> <span class="s1">'I was born in an elevator...'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">add_data</span><span class="p">(</span><span class="nv">$name</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span> + +<span class="nv">$zip_file</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">get_zip</span><span class="p">();</span> +</pre></div> +</div> +</dd></dl> + +<dl class="method"> +<dt id="CI_Zip::clear_data"> +<code class="descname">clear_data</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Zip::clear_data" title="Permalink to this definition">¶</a></dt> +<dd><table class="docutils field-list" frame="void" rules="none"> +<col class="field-name" /> +<col class="field-body" /> +<tbody valign="top"> +<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body">void</td> +</tr> +</tbody> +</table> +<p>The Zip class caches your zip data so that it doesn’t need to recompile the Zip archive +for each method you use above. If, however, you need to create multiple Zip archives, +each with different data, you can clear the cache between calls. Example:</p> +<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$name</span> <span class="o">=</span> <span class="s1">'my_bio.txt'</span><span class="p">;</span> +<span class="nv">$data</span> <span class="o">=</span> <span class="s1">'I was born in an elevator...'</span><span class="p">;</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">add_data</span><span class="p">(</span><span class="nv">$name</span><span class="p">,</span> <span class="nv">$data</span><span class="p">);</span> +<span class="nv">$zip_file</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">get_zip</span><span class="p">();</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">clear_data</span><span class="p">();</span> + +<span class="nv">$name</span> <span class="o">=</span> <span class="s1">'photo.jpg'</span><span class="p">;</span> +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">read_file</span><span class="p">(</span><span class="s2">"/path/to/photo.jpg"</span><span class="p">);</span> <span class="c1">// Read the file's contents</span> + +<span class="nv">$this</span><span class="o">-></span><span class="na">zip</span><span class="o">-></span><span class="na">download</span><span class="p">(</span><span class="s1">'myphotos.zip'</span><span class="p">);</span> +</pre></div> +</div> +</dd></dl> + +</dd></dl> + +</div> +</div> + + + </div> + <footer> + + <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> + + <a href="../database/index.html" class="btn btn-neutral float-right" title="Database Reference">Next <span class="fa fa-arrow-circle-right"></span></a> + + + <a href="xmlrpc.html" class="btn btn-neutral" title="XML-RPC and XML-RPC Server Classes"><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 Mar 22, 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:'3.1.8', + 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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