<!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>Text 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 1.6.3</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> › Text 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>Text Helper</h1> <p>The Text Helper file contains functions that assist in working with text.</p> <h2>Loading this Helper</h2> <p>This helper is loaded using the following code:</p> <code>$this->load->helper('text');</code> <p>The following functions are available:</p> <h2>word_limiter()</h2> <p>Truncates a string to the number of <strong>words</strong> specified. Example:</p> <code> $string = "Here is a nice text string consisting of eleven words.";<br /> <br /> $string = word_limiter($string, 4);<br /><br /> // Returns: Here is a nice… </code> <p>The third parameter is an optional suffix added to the string. By default it adds an ellipsis.</p> <h2>character_limiter()</h2> <p>Truncates a string to the number of <strong>characters</strong> specified. It maintains the integrity of words so the character count may be slightly more or less then what you specify. Example:</p> <code> $string = "Here is a nice text string consisting of eleven words.";<br /> <br /> $string = character_limiter($string, 20);<br /><br /> // Returns: Here is a nice text string… </code> <p>The third parameter is an optional suffix added to the string. By default it add an ellipsis.</p> <h2>ascii_to_entities()</h2> <p>Converts ASCII values to character entities, including high ASCII and MS Word characters that can cause problems when used in a web page, so that they can be shown consistently regardless of browser settings or stored reliably in a database. There is some dependence on your server's supported character sets, so it may not be 100% reliable in all cases, but for the most part it should correctly identify characters outside the normal range (like accented characters). Example:</p> <code>$string = ascii_to_entities($string);</code> <h2>entities_to_ascii()</h2> <p>This function does the opposite of the previous one; it turns character entities back into ASCII.</p> <h2>word_censor()</h2> <p>Enables you to censor words within a text string. The first parameter will contain the original string. The second will contain an array of words which you disallow. The third (optional) parameter can contain a replacement value for the words. If not specified they are replaced with pound signs: ####. Example:</p> <code> $disallowed = array('darn', 'shucks', 'golly', 'phooey');<br /> <br /> $string = word_censor($string, $disallowed, 'Beep!');</code> <h2>highlight_code()</h2> <p>Colorizes a string of code (PHP, HTML, etc.). Example:</p> <code>$string = highlight_code($string);</code> <p>The function uses PHP's highlight_string() function, so the colors used are the ones specified in your php.ini file.</p> <h2>highlight_phrase()</h2> <p>Will highlight a phrase within a text string. The first parameter will contain the original string, the second will contain the phrase you wish to highlight. The third and fourth parameters will contain the opening/closing HTML tags you would like the phrase wrapped in. Example:</p> <code> $string = "Here is a nice text string about nothing in particular.";<br /> <br /> $string = highlight_phrase($string, "nice text", '<span style="color:#990000">', '</span>'); </code> <p>The above text returns:</p> <p>Here is a <span style="color:#990000">nice text</span> string about nothing in particular.</p> <h2>word_wrap()</h2> <p>Wraps text at the specified <strong>character</strong> count while maintaining complete words. Example:</p> <code>$string = "Here is a simple string of text that will help us demonstrate this function.";<br /> <br /> echo word_wrap($string, 25);<br /> <br /> // Would produce:<br /> <br /> Here is a simple string<br /> of text that will help<br /> us demonstrate this<br /> function</code> </div> <!-- END CONTENT --> <div id="footer"> <p> Previous Topic: <a href="string_helper.html">String Helper</a> · <a href="#top">Top of Page</a> · <a href="../index.html">User Guide Home</a> · Next Topic: <a href="typography_helper.html">Typography 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>