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authoradmin <devnull@localhost>2006-08-25 19:25:49 +0200
committeradmin <devnull@localhost>2006-08-25 19:25:49 +0200
commitb0dd10f8171945e0c1f3527dd1e9d18b043e01a7 (patch)
treec3583ba09e72217683c4304f4690df6ce39ba731 /user_guide/general/alternative_php.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html>
+<head>
+
+<title>Code Igniter 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' />
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+}
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+<!-- 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.jpg" width="153" height="44" 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>Code Igniter User Guide Version 1.4.0</h1></td>
+<td id="breadcrumb_right"><a href="../toc.html">Full Table of Contents</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://www.codeigniter.com/">Code Igniter Home</a> &nbsp;&#8250;&nbsp;
+<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
+Alternate PHP Syntax
+</td>
+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="www.codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
+</tr>
+</table>
+<!-- END BREADCRUMB -->
+
+<br clear="all" />
+
+
+<!-- START CONTENT -->
+<div id="content">
+
+<h1>Alternate PHP Syntax for View Files</h1>
+
+<p>If you do not utilize Code Igniter's <a href="../libraries/parser.html">template engine</a>, you'll be using pure PHP
+in your View files. To minimize the PHP code in these files, and to make it easier to identify the code blocks it is recommended that you use PHPs alternative
+syntax for control structures and echo statements. If you are not familiar with this syntax, it allows you to eliminate the braces from your code,
+and eliminate "echo" statements.</p>
+
+<h2>Alternative Echos</h2>
+
+<p>Normally to echo, or print out a variable you would do this:</p>
+
+<code>&lt;?php echo $variable; ?></code>
+
+<p>With the alternative syntax you can instead do it this way:</p>
+
+<code>&lt;?=$variable?></code>
+
+<p class="important"><strong>Note:</strong> If you find that the syntax described in this page does not work on your server it might
+be that "short tags" are disabled in your PHP ini file.</p>
+
+
+<h2>Alternative Control Structures</h2>
+
+<p>Controls structures, like <var>if</var>, <var>for</var>, <var>foreach</var>, and <var>while</var> can be
+written in a simplified format as well. Here is an example using foreach:</p>
+
+<code>
+&lt;ul><br />
+<br />
+<var>&lt;?php foreach($todo as $item): ?></var><br />
+<br />
+&lt;li><var>&lt;?=$item?></var>&lt;/li><br />
+<br />
+<var>&lt;?php endforeach ?></var><br />
+<br />
+&lt;/ul></code>
+
+<p>Notice that there are no braces. Instead, the end brace is replaced with <var>endforeach</var>.
+Each of the control structures listed above has a similar closing syntax:
+<var>endif</var>, <var>endfor</var>, <var>endforeach</var>, and <var>endwhile</var></p>
+
+<p>Also notice that instead of using a semicolon after each structure (except the last one), there is a colon. This is
+important!</p>
+
+<p>Here is another example, using if/elseif/else. Notice the colons:</p>
+
+
+<code><var>&lt;?php if ($username == 'sally'): ?></var><br />
+<br />
+&nbsp;&nbsp;&nbsp;&lt;h3>Hi Sally&lt;/h3><br />
+<br />
+<var>&lt;?php elseif ($username == 'joe'): ?></var><br />
+<br />
+&nbsp;&nbsp;&nbsp;&lt;h3>Hi Joe&lt;/h3><br />
+<br />
+<var>&lt;?php else: ?></var><br />
+<br />
+&nbsp;&nbsp;&nbsp;&lt;h3>Hi unknown user&lt;/h3><br />
+<br />
+<var>&lt;?php endif; ?></var></code>
+
+
+
+</div>
+<!-- END CONTENT -->
+
+
+<div id="footer">
+<p>
+Previous Topic:&nbsp;&nbsp;<a href="multiple_apps.html">Running Multiple Applications</a>
+&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+<a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
+Next Topic:&nbsp;&nbsp;<a href="security.html">Security</a>
+<p>
+<p><a href="http://www.codeigniter.com">Code Igniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006 &nbsp;&middot;&nbsp; <a href="http://www.pmachine.com">pMachine, Inc.</a></p>
+</div>
+
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+</html> \ No newline at end of file