Blame | Letzte Änderung | Log anzeigen | RSS feed
<!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 1.7.1</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 integrityof 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($string, 20);<br /><br />// Returns: Here is a nice text string…</code><p>The third parameter is an optional suffix added to the string, if undeclared this helper uses an ellipsis.</p><h2>ascii_to_entities()</h2><p>Converts ASCII values to character entities, including high ASCII and MS Word characters that can cause problems when used in a web page,so that they can be shown consistently regardless of browser settings or stored reliably in a database.There is some dependence on your server's supported character sets, so it may not be 100% reliable in all cases, but for the mostpart it should correctly identify characters outside the normal range (like accented characters). Example:</p><code>$string = ascii_to_entities($string);</code><h2>entities_to_ascii()</h2><p>This function does the opposite of the previous one; it turns character entities back into ASCII.</p><h2>word_censor()</h2><p>Enables you to censor words within a text string. The first parameter will contain the original string. Thesecond will contain an array of words which you disallow. The third (optional) parameter can contain a replacement valuefor the words. If not specified they are replaced with pound signs: ####. Example:</p><code>$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($string);</code><p>The function uses PHP's highlight_string() function, so the colors used are the ones specified in your php.ini file.</p><h2>highlight_phrase()</h2><p>Will highlight a phrase within a text string. The first parameter will contain the original string, the second willcontain the phrase you wish to highlight. The third and fourth parameters will contain the opening/closing HTML tagsyou would like the phrase wrapped in. Example:</p><code>$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>