Template class - help!!

Sam Granger · 06-01-2008, 11:29 PM

I have written the following simple class - first of all, if I can improve any parts, please let me know!!

PHP Code:


			
<?php



/**

 * @author Sam Granger

 * @copyright 2008, *******.com

 */



class Template {



    var $template;

    

    function __construct($template_file) {



        $this->template = file_get_contents($template_file);



    }

    

    function replaceTags($variable, $content) {

        $this->template = str_replace('<% ' . $variable . ' %>', $content, $this->template);

    }

    

    function displayHTML() {

        echo $this->template;

    }



}



?>

Used as following:

PHP Code:


			
$template = new Template('design.html');

$template->replaceTags('title', 'Hello!');

$template->replaceTags('message', 'Under construction');

$template->displayHTML();

Whats the best way to implement variables that are outputted from a while or for statement?

delayedinsanity · 06-02-2008, 12:53 AM

PHP Code:


			
for ($aArray as $key => $value) {
    $template->replaceTag($key, $value);
}

Seems like too easy an answer though, but I don't know, if you post an example of what you're trying to do perhaps?
-m

Kalle · 06-02-2008, 01:00 AM

The best way to do that would be to make a replaceTags version that accepts arrays and then iterates though them like:

PHP Code:


			
public function replaceTags($tags, $value = NULL)

{

    if(is_array($tags) && sizeof($tags))

    {

        $value     = array_values($tags);

        $tags    = array_map(Array($this, 'appendTags'), array_keys($tags));

    }



    $this->template = str_replace($value, $value, $this->template);

}



private function appendTags($variable)

{

    return('<% ' . $variable . ' %>');

}

After seeing you use PHP5 I would use the __toString() magic method for the output like:

PHP Code:


			
public function __toString()

{

    return((string) $this->template);

}

And then you can use it like:

PHP Code:


			
$template = new Template('test.html');

/* variables ... */

echo $template;

For the iterator to work then you are able to do like:

PHP Code:


			
while(/* statement */)

{

    /* Assuming $data is an array */

    $template = new Template('output.html');

    $template->replaceTags($data);



    echo $template;

}

I would also recommed you to use the private/protected/public modifiers =)

Hope this helps

Sam Granger · 07-28-2008, 08:04 AM

Sorry for the old bump.

Want to output each row from a mysql while statement. Whats the best way to get around this?

Meant something so in the template I can add:

<% beginwhile:results %>
<div>
<h3><% Name %></h3>
<p><% Address %></p>
</div>
<% endwhile:results %>

Ross · 07-28-2008, 11:13 AM

Quote:

Originally Posted by Sam Granger

Sorry for the old bump.

Want to output each row from a mysql while statement. Whats the best way to get around this?

Meant something so in the template I can add:

<% beginwhile:results %>
<div>
<h3><% Name %></h3>
<p><% Address %></p>
</div>
<% endwhile:results %>

I'd go for something like this:

PHP Code:


			
public function replace_while($name, Array $data)

{

    if(strstr('<% beginwhile:' . strtolower($name) . ' %>', $this->template) && strstr('<% beginwhile:' . strtolower($name) . ' %>', $this->template))

    {

        foreach($data as $key => $value)

        {

            $this->replace_tags($key, $value);

        }

        

        $this->replace_tags('beginwhile:' . strtolower($name), '');

        $this->replace_tags('endwhile:' . strtolower($name), '');

    }

}

Then to call it you'd do something like:

PHP Code:


			
$results_d = $db->query('SELECT * FROM `results` WHERE `x` = 4 ORDER BY `the_moon`');



if($results_d->num_rows < 1)

{

    // blah

}

else

{

    $users = new Template('users');

    

    $results = array();

    while($result = $results_d->fetch_assoc())

    {

        foreach($result as $key => $value)

        {

            $results[$key] = $value;

        }

    }

    

    $users->replace_while('results', $results);

}

Sam Granger · 07-28-2008, 07:42 PM

Quote:

Originally Posted by redSHIFT

PHP Code:


			
$results_d = $db->query('SELECT * FROM `results` WHERE `x` = 4 ORDER BY `the_moon`');



if($results_d->num_rows < 1)

{

    // blah

}

else

{

    $users = new Template('users');

    

    $results = array();

    while($result = $results_d->fetch_assoc())

    {

        foreach($result as $key => $value)

        {

            $results[$key] = $value;

        }

    }

    

    $users->replace_while('results', $results);

}

Ok, I think this is what I'm after but the code above, lets say my query 'messageresult' returns 'title' & 'message' - how do I send both those variables to the template?