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| <h1>Alternate PHP Syntax for View Files</h1> | |
| <p>If you do not utilize CodeIgniter'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 short tag 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>Automatic Short Tag Support</h2> | |
| <p><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. CodeIgniter will optionally rewrite short tags on-the-fly, | |
| allowing you to use that syntax even if your server doesn't support it. This feature can be enabled in your | |
| <dfn>config/config.php</dfn> file.</p> | |
| <p class="important">Please note that if you do use this feature, if PHP errors are encountered | |
| in your <strong>view files</strong>, the error message and line number will not be accurately shown. Instead, all errors | |
| will be shown as <kbd>eval()</kbd> errors.</p> | |
| <h2>Alternative Echos</h2> | |
| <p>Normally to echo, or print out a variable you would do this:</p> | |
| <code><?php echo $variable; ?></code> | |
| <p>With the alternative syntax you can instead do it this way:</p> | |
| <code><?=$variable?></code> | |
| <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> | |
| <ul><br /> | |
| <br /> | |
| <var><?php foreach($todo as $item): ?></var><br /> | |
| <br /> | |
| <li><var><?=$item?></var></li><br /> | |
| <br /> | |
| <var><?php endforeach; ?></var><br /> | |
| <br /> | |
| </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><?php if ($username == 'sally'): ?></var><br /> | |
| <br /> | |
| <h3>Hi Sally</h3><br /> | |
| <br /> | |
| <var><?php elseif ($username == 'joe'): ?></var><br /> | |
| <br /> | |
| <h3>Hi Joe</h3><br /> | |
| <br /> | |
| <var><?php else: ?></var><br /> | |
| <br /> | |
| <h3>Hi unknown user</h3><br /> | |
| <br /> | |
| <var><?php endif; ?></var></code> | |
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