diff options
| author | Derek Allard <derek.allard@ellislab.com> | 2008-11-13 23:59:24 +0100 |
|---|---|---|
| committer | Derek Allard <derek.allard@ellislab.com> | 2008-11-13 23:59:24 +0100 |
| commit | 2067d1a727e7eb5e5ffb40e967f3d1fc4c8a41b2 (patch) | |
| tree | a95e01024205837e9580757350d04b233e82503f /user_guide/helpers/file_helper.html | |
| parent | dd9f932556d3cd45a1d06cc478f40d06b7649a69 (diff) | |
Changing EOL style to LF
Diffstat (limited to 'user_guide/helpers/file_helper.html')
| -rw-r--r-- | user_guide/helpers/file_helper.html | 354 |
1 files changed, 177 insertions, 177 deletions
diff --git a/user_guide/helpers/file_helper.html b/user_guide/helpers/file_helper.html index e534f50dc..b16201c1f 100644 --- a/user_guide/helpers/file_helper.html +++ b/user_guide/helpers/file_helper.html @@ -1,178 +1,178 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
-<head>
-
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<title>File Helper : CodeIgniter User Guide</title>
-
-<style type='text/css' media='all'>@import url('../userguide.css');</style>
-<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
-
-<script type="text/javascript" src="../nav/nav.js"></script>
-<script type="text/javascript" src="../nav/prototype.lite.js"></script>
-<script type="text/javascript" src="../nav/moo.fx.js"></script>
-<script type="text/javascript" src="../nav/user_guide_menu.js"></script>
-
-<meta http-equiv='expires' content='-1' />
-<meta http-equiv= 'pragma' content='no-cache' />
-<meta name='robots' content='all' />
-<meta name='author' content='ExpressionEngine Dev Team' />
-<meta name='description' content='CodeIgniter User Guide' />
-</head>
-<body>
-
-<!-- START NAVIGATION -->
-<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
-<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
-<div id="masthead">
-<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
-<tr>
-<td><h1>CodeIgniter User Guide Version 1.7</h1></td>
-<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
-</tr>
-</table>
-</div>
-<!-- END NAVIGATION -->
-
-
-<!-- START BREADCRUMB -->
-<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
-<tr>
-<td id="breadcrumb">
-<a href="http://codeigniter.com/">CodeIgniter Home</a> ›
-<a href="../index.html">User Guide Home</a> ›
-File Helper
-</td>
-<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td>
-</tr>
-</table>
-<!-- END BREADCRUMB -->
-
-<br clear="all" />
-
-
-<!-- START CONTENT -->
-<div id="content">
-
-
-<h1>File Helper</h1>
-
-<p>The File Helper file contains functions that assist in working with files.</p>
-
-
-<h2>Loading this Helper</h2>
-
-<p>This helper is loaded using the following code:</p>
-<code>$this->load->helper('file');</code>
-
-<p>The following functions are available:</p>
-
-<h2>read_file('<var>path</var>')</h2>
-
-<p>Returns the data contained in the file specified in the path. Example:</p>
-
-<code>$string = read_file('./path/to/file.php');</code>
-
-<p>The path can be a relative or full server path. Returns FALSE (boolean) on failure.</p>
-
-<p class="important"><strong>Note:</strong> 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>
-
-<p>If your server is running an open_basedir restriction this function
-might not work if you are trying to access a file above the calling script.</p>
-
-<h2>write_file('<var>path</var>', <kbd>$data</kbd>)</h2>
-
-<p>Writes data to the file specified in the path. If the file does not exist the function will create it. Example:</p>
-
-<code>
-$data = 'Some file data';<br />
-<br />
-if ( ! write_file('./path/to/file.php', $data))<br />
-{<br />
- echo 'Unable to write the file';<br />
-}<br />
-else<br />
-{<br />
- echo 'File written!';<br />
-}</code>
-
-<p>You can optionally set the write mode via the third parameter:</p>
-
-<code>write_file('./path/to/file.php', $data, <var>'r+'</var>);</code>
-
-<p>The default mode is <kbd>wb</kbd>. Please see the <a href="http://php.net/fopen">PHP user guide</a> for mode options.</p>
-
-<p>Note: In order for this function to write data to a file its file permissions must be set such that it is writable (666, 777, etc.).
-If the file does not already exist, the directory containing it must be writable.</p>
-
-<p class="important"><strong>Note:</strong> The path is relative to your main site index.php file, NOT your controller or view files.
-CodeIgniter uses a front controller so paths are always relative to the main site index.</p>
-
-<h2>delete_files('<var>path</var>')</h2>
-
-<p>Deletes ALL files contained in the supplied path. Example:</p>
-<code>delete_files('./path/to/directory/');</code>
-
-<p>If the second parameter is set to <kbd>true</kbd>, any directories contained within the supplied root path will be deleted as well. Example:</p>
-
-<code>delete_files('./path/to/directory/', TRUE);</code>
-
-<p class="important"><strong>Note:</strong> The files must be writable or owned by the system in order to be deleted.</p>
-
-<h2>get_filenames('<var>path/to/directory/</var>')</h2>
-
-<p>Takes a server path as input and returns an array containing the names of all files contained within it. The file path
-can optionally be added to the file names by setting the second parameter to TRUE.</p>
-
-<h2>get_dir_file_info('<var>path/to/directory/</var>')</h2>
-
-<p>Reads the specified directory and builds an array containing the filenames, filesize, dates, and permissions. Any sub-folders contained within the specified path are read as well.</p>
-
-<h2>get_file_info('<var>path/to/file</var>', <kbd>$file_information</kbd>)</h2>
-
-<p>Given a file and path, returns the name, path, size, date modified. Second parameter allows you to explicitly declare what information you want returned; options are: name, server_path, size, date, readable, writable, executable, fileperms. Returns FALSE if the file cannot be found.</p>
-
-<p class="important"><strong>Note:</strong> The "writable" uses the PHP function is_writable() which is known to have issues on the IIS webserver. Consider using fileperms instead, which returns information from PHP's fileperms() function.</p>
-<h2>get_mime_by_extension('<var>file</var>')</h2>
-
-<p>Translates a file extension into a mime type based on config/mimes.php. Returns FALSE if it can't determine the type, or open the mime config file.</p>
-<p>
-<code>$file = "somefile.png";<br />
-echo $file . ' is has a mime type of ' . get_mime_by_extension($file);</code>
-</p>
-<p class="critical"><strong>Note:</strong> This is not an accurate way of determining file mime types, and is here strictly as a convenience. It should not be used for security.</p>
-
-<h2>symbolic_permissions(<kbd>$perms</kbd>)</h2>
-
-<p>Takes numeric permissions (such as is returned by <kbd>fileperms()</kbd> and returns standard symbolic notation of file permissions.</p>
-
-<code>echo symbolic_permissions(fileperms('./index.php'));<br />
-<br />
-// -rw-r--r--</code>
-
-<h2>octal_permissions(<kbd>$perms</kbd>)</h2>
-
-<p>Takes numeric permissions (such as is returned by <kbd>fileperms()</kbd> and returns a three character octal notation of file permissions.</p>
-
-<code>echo octal_permissions(fileperms('./index.php'));<br />
-<br />
-// 644</code>
-
-</div>
-
-<!-- END CONTENT -->
-
-
-<div id="footer">
-<p>
-Previous Topic: <a href="email_helper.html">Email Helper</a>
- ·
-<a href="#top">Top of Page</a> ·
-<a href="../index.html">User Guide Home</a> ·
-Next Topic: <a href="form_helper.html">Form Helper</a></p>
-<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006-2008 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
-</div>
-
-</body>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> +<head> + +<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> +<title>File Helper : CodeIgniter User Guide</title> + +<style type='text/css' media='all'>@import url('../userguide.css');</style> +<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' /> + +<script type="text/javascript" src="../nav/nav.js"></script> +<script type="text/javascript" src="../nav/prototype.lite.js"></script> +<script type="text/javascript" src="../nav/moo.fx.js"></script> +<script type="text/javascript" src="../nav/user_guide_menu.js"></script> + +<meta http-equiv='expires' content='-1' /> +<meta http-equiv= 'pragma' content='no-cache' /> +<meta name='robots' content='all' /> +<meta name='author' content='ExpressionEngine Dev Team' /> +<meta name='description' content='CodeIgniter User Guide' /> +</head> +<body> + +<!-- START NAVIGATION --> +<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div> +<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div> +<div id="masthead"> +<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> +<tr> +<td><h1>CodeIgniter User Guide Version 1.7</h1></td> +<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> +</tr> +</table> +</div> +<!-- END NAVIGATION --> + + +<!-- START BREADCRUMB --> +<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> +<tr> +<td id="breadcrumb"> +<a href="http://codeigniter.com/">CodeIgniter Home</a> › +<a href="../index.html">User Guide Home</a> › +File Helper +</td> +<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td> +</tr> +</table> +<!-- END BREADCRUMB --> + +<br clear="all" /> + + +<!-- START CONTENT --> +<div id="content"> + + +<h1>File Helper</h1> + +<p>The File Helper file contains functions that assist in working with files.</p> + + +<h2>Loading this Helper</h2> + +<p>This helper is loaded using the following code:</p> +<code>$this->load->helper('file');</code> + +<p>The following functions are available:</p> + +<h2>read_file('<var>path</var>')</h2> + +<p>Returns the data contained in the file specified in the path. Example:</p> + +<code>$string = read_file('./path/to/file.php');</code> + +<p>The path can be a relative or full server path. Returns FALSE (boolean) on failure.</p> + +<p class="important"><strong>Note:</strong> 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> + +<p>If your server is running an open_basedir restriction this function +might not work if you are trying to access a file above the calling script.</p> + +<h2>write_file('<var>path</var>', <kbd>$data</kbd>)</h2> + +<p>Writes data to the file specified in the path. If the file does not exist the function will create it. Example:</p> + +<code> +$data = 'Some file data';<br /> +<br /> +if ( ! write_file('./path/to/file.php', $data))<br /> +{<br /> + echo 'Unable to write the file';<br /> +}<br /> +else<br /> +{<br /> + echo 'File written!';<br /> +}</code> + +<p>You can optionally set the write mode via the third parameter:</p> + +<code>write_file('./path/to/file.php', $data, <var>'r+'</var>);</code> + +<p>The default mode is <kbd>wb</kbd>. Please see the <a href="http://php.net/fopen">PHP user guide</a> for mode options.</p> + +<p>Note: In order for this function to write data to a file its file permissions must be set such that it is writable (666, 777, etc.). +If the file does not already exist, the directory containing it must be writable.</p> + +<p class="important"><strong>Note:</strong> The path is relative to your main site index.php file, NOT your controller or view files. +CodeIgniter uses a front controller so paths are always relative to the main site index.</p> + +<h2>delete_files('<var>path</var>')</h2> + +<p>Deletes ALL files contained in the supplied path. Example:</p> +<code>delete_files('./path/to/directory/');</code> + +<p>If the second parameter is set to <kbd>true</kbd>, any directories contained within the supplied root path will be deleted as well. Example:</p> + +<code>delete_files('./path/to/directory/', TRUE);</code> + +<p class="important"><strong>Note:</strong> The files must be writable or owned by the system in order to be deleted.</p> + +<h2>get_filenames('<var>path/to/directory/</var>')</h2> + +<p>Takes a server path as input and returns an array containing the names of all files contained within it. The file path +can optionally be added to the file names by setting the second parameter to TRUE.</p> + +<h2>get_dir_file_info('<var>path/to/directory/</var>')</h2> + +<p>Reads the specified directory and builds an array containing the filenames, filesize, dates, and permissions. Any sub-folders contained within the specified path are read as well.</p> + +<h2>get_file_info('<var>path/to/file</var>', <kbd>$file_information</kbd>)</h2> + +<p>Given a file and path, returns the name, path, size, date modified. Second parameter allows you to explicitly declare what information you want returned; options are: name, server_path, size, date, readable, writable, executable, fileperms. Returns FALSE if the file cannot be found.</p> + +<p class="important"><strong>Note:</strong> The "writable" uses the PHP function is_writable() which is known to have issues on the IIS webserver. Consider using fileperms instead, which returns information from PHP's fileperms() function.</p> +<h2>get_mime_by_extension('<var>file</var>')</h2> + +<p>Translates a file extension into a mime type based on config/mimes.php. Returns FALSE if it can't determine the type, or open the mime config file.</p> +<p> +<code>$file = "somefile.png";<br /> +echo $file . ' is has a mime type of ' . get_mime_by_extension($file);</code> +</p> +<p class="critical"><strong>Note:</strong> This is not an accurate way of determining file mime types, and is here strictly as a convenience. It should not be used for security.</p> + +<h2>symbolic_permissions(<kbd>$perms</kbd>)</h2> + +<p>Takes numeric permissions (such as is returned by <kbd>fileperms()</kbd> and returns standard symbolic notation of file permissions.</p> + +<code>echo symbolic_permissions(fileperms('./index.php'));<br /> +<br /> +// -rw-r--r--</code> + +<h2>octal_permissions(<kbd>$perms</kbd>)</h2> + +<p>Takes numeric permissions (such as is returned by <kbd>fileperms()</kbd> and returns a three character octal notation of file permissions.</p> + +<code>echo octal_permissions(fileperms('./index.php'));<br /> +<br /> +// 644</code> + +</div> + +<!-- END CONTENT --> + + +<div id="footer"> +<p> +Previous Topic: <a href="email_helper.html">Email Helper</a> + · +<a href="#top">Top of Page</a> · +<a href="../index.html">User Guide Home</a> · +Next Topic: <a href="form_helper.html">Form Helper</a></p> +<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006-2008 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p> +</div> + +</body> </html>
\ No newline at end of file |