>
> On Aug 11, 2009, at 12:13 AM, [email protected] wrote:
>
>> Do *NOT* get into the habit of outputting your HTML using echo or
>> print
>> statements, it becomes unmaintainable very quickly, use a templating
>> language, ether with a framework(recomended) or standalone.
>
> This sounds interesting. Could you expound on this a little
more and
> perhaps list a couple of the templates you mention?
>
> Thanks,
> Frank
>
There are a number of options for templating in PHP such as smarty, Dwoo
and PHP itself, though the syntax can be rather messy. Personally I just
use a simple find and replace macro system to expand custom short-hand
code into the more verbose PHP, then run it through exec and capture the
result to a variable with output buffering, the class folows:
<?php
class view
{
var $str;
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* Load in template file and expand macros into PHP
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
function __CONSTRUCT($tplname)
{
$fh = fopen($tplname, 'r');
$this->str = fread($fh, filesize($tplname));
fclose($fh);
$this->expand_macros();
}
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* Run the template and return a variable
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
public function parse_to_variable($array = array())
{
extract($array);
ob_start();
eval($this->str);
$result = ob_get_contents();
ob_end_clean();
return $result;
}
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
* Expand macros into PHP
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
private function expand_macros()
{
// Expand if macro
$this->str = str_replace("<if", "<?php if", $this->str);
$this->str = str_replace("<eif~>", "<?php endif;?>", $this->str);
// Expand loop macro
$this->str = str_replace("<loop", "<?php foreach", $this->str);
$this->str = str_replace("<eloop~>", "<?php endforeach;?>",
$this->str);
// Expand display macro
$this->str = str_replace("<dsp", "<?php echo", $this->str);
// Expand end tag macro
$this->str = str_replace("~>", "?>", $this->str);
// Add PHP close tag to exit PHP mode
$this->str = "?>" . $this->str;
}
}
------------------------------------------------------------------------
This loads template files like the folowing:
<form enctype="multipart/form-data" action="<dsp $upload_url ~>"
method="post">
<p><input type="hidden" name="MAX_FILE_SIZE" value="90000000000" /></p>
<p>Upload new file, max size <dsp $max ~>:</p>
<p>
<input name="uploaded_file" type="file" />
<input type="submit" value="Send File" />
</p>
</form>
<table>
<tr>
<th width="180px">Filename</th>
<th width="60px">Link</th>
<th width="90px">Size (KB)</th>
<th width="50px">Delete</th>
<tr>
<loop ($files as $file): ~>
<tr>
<td><dsp $file['Name'] ~></td>
<td><a href="<dsp $file['Path'] ~>">Link</a></td>
<td><dsp $file['Size'] / 1000 ~></td>
<td><a href="<dsp $file['d_url'] ~>">X</a></td>
<tr>
<eloop~>
</table>
---------------------------------------------------------------
And it can be used like this
$dialogue = new view("template/file_display.tpl");
$dialogue = $dialogue -> parse_to_variable(array(
'upload_url' => $upload_url,
'max' => $max_size,
'files' => $files));
the $dialogue var now contains the compiled template, ready for displaying
or integrating into another template.
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