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| author | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
|---|---|---|
| committer | Joël Cox <joel@joelcox.nl> | 2011-10-09 18:39:39 +0200 |
| commit | f4fb1db458fab52d0493ead52c9ea7e01206eaa7 (patch) | |
| tree | c549600f342f4d3f0df75a2f2f7c265be0f1cc72 /user_guide/helpers/string_helper.html | |
| parent | c4dd200c1155a118afa32cd91d9bd67bc243f83a (diff) | |
Moved tutorial to new user guide directory.
Diffstat (limited to 'user_guide/helpers/string_helper.html')
| -rw-r--r-- | user_guide/helpers/string_helper.html | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/user_guide/helpers/string_helper.html b/user_guide/helpers/string_helper.html deleted file mode 100644 index 314124037..000000000 --- a/user_guide/helpers/string_helper.html +++ /dev/null @@ -1,189 +0,0 @@ -<!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>String 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 2.0.3</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> › -String 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>String Helper</h1> - -<p>The String Helper file contains functions that assist in working with strings.</p> - - -<h2>Loading this Helper</h2> - -<p>This helper is loaded using the following code:</p> -<code>$this->load->helper('string');</code> - -<p>The following functions are available:</p> - -<h2>random_string()</h2> - -<p>Generates a random string based on the type and length you specify. Useful for creating passwords or generating random hashes.</p> - -<p>The first parameter specifies the type of string, the second parameter specifies the length. The following choices are available:</p> - - alpha, alunum, numeric, nozero, unique, md5, encrypt and sha1 -<ul> - <li><strong>alpha</strong>: A string with lower and uppercase letters only.</li> - <li><strong>alnum</strong>: Alpha-numeric string with lower and uppercase characters.</li> - <li><strong>numeric</strong>: Numeric string.</li> - <li><strong>nozero</strong>: Numeric string with no zeros.</li> - <li><strong>unique</strong>: Encrypted with MD5 and uniqid(). Note: The length parameter is not available for this type. - Returns a fixed length 32 character string.</li> - <li><strong>sha1</strong>: An encrypted random number based on <kbd>do_hash()</kbd> from the <a href="security_helper.html">security helper</a>.</li> -</ul> - -<p>Usage example:</p> - -<code>echo random_string('alnum', 16);</code> - - -<h2>increment_string()</h2> - -<p>Increments a string by appending a number to it or increasing the number. Useful for creating "copies" or a file or duplicating database content which has unique titles or slugs.</p> - -<p>Usage example:</p> - -<code>echo increment_string('file', '_'); // "file_1"<br/> -echo increment_string('file', '-', 2); // "file-2"<br/> -echo increment_string('file-4'); // "file-5"<br/></code> - - -<h2>alternator()</h2> - -<p>Allows two or more items to be alternated between, when cycling through a loop. Example:</p> - -<code>for ($i = 0; $i < 10; $i++)<br /> -{<br /> - echo alternator('string one', 'string two');<br /> -}<br /> -</code> - -<p>You can add as many parameters as you want, and with each iteration of your loop the next item will be returned.</p> - -<code>for ($i = 0; $i < 10; $i++)<br /> -{<br /> - echo alternator('one', 'two', 'three', 'four', 'five');<br /> -}<br /> -</code> - -<p><strong>Note:</strong> To use multiple separate calls to this function simply call the function with no arguments to re-initialize.</p> - - - -<h2>repeater()</h2> -<p>Generates repeating copies of the data you submit. Example:</p> -<code>$string = "\n";<br /> -echo repeater($string, 30);</code> - -<p>The above would generate 30 newlines.</p> -<h2>reduce_double_slashes()</h2> -<p>Converts double slashes in a string to a single slash, except those found in http://. Example: </p> -<code>$string = "http://example.com//index.php";<br /> -echo reduce_double_slashes($string); // results in "http://example.com/index.php"</code> -<h2>trim_slashes()</h2> -<p>Removes any leading/trailing slashes from a string. Example:<br /> - <br /> - <code>$string = "/this/that/theother/";<br /> -echo trim_slashes($string); // results in this/that/theother</code></p> - - -<h2>reduce_multiples()</h2> -<p>Reduces multiple instances of a particular character occuring directly after each other. Example:</p> -<code> -$string="Fred, Bill,, Joe, Jimmy";<br /> -$string=reduce_multiples($string,","); //results in "Fred, Bill, Joe, Jimmy" -</code> -<p>The function accepts the following parameters: -<code>reduce_multiples(string: text to search in, string: character to reduce, boolean: whether to remove the character from the front and end of the string)</code> - -The first parameter contains the string in which you want to reduce the multiplies. The second parameter contains the character you want to have reduced. -The third parameter is FALSE by default; if set to TRUE it will remove occurences of the character at the beginning and the end of the string. Example: - -<code> -$string=",Fred, Bill,, Joe, Jimmy,";<br /> -$string=reduce_multiples($string, ", ", TRUE); //results in "Fred, Bill, Joe, Jimmy" -</code> -</p> - -<h2>quotes_to_entities()</h2> -<p>Converts single and double quotes in a string to the corresponding HTML entities. Example:</p> -<code>$string="Joe's \"dinner\"";<br /> -$string=quotes_to_entities($string); //results in "Joe&#39;s &quot;dinner&quot;" -</code> - -<h2>strip_quotes()</h2> -<p>Removes single and double quotes from a string. Example:</p> -<code>$string="Joe's \"dinner\"";<br /> -$string=strip_quotes($string); //results in "Joes dinner" -</code> - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="smiley_helper.html">Smiley Helper</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="text_helper.html">Text Helper</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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