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Implementing the View in MVC or MVP (in PHP)

Answer 1

+1 A:

You can get the benefit of both, obtaining a string of HTML while also embedding HTML within PHP code, by using the output control functions:

From the PHP manual @ http://www.php.net/manual/en/ref.outcontrol.php:

<?php

function callback($buffer)
{
  // replace all the apples with oranges
  return (str_replace("apples", "oranges", $buffer));
}

ob_start("callback");

?>
<html>
<body>
<p>It's like comparing apples to oranges.</p>
</body>
</html>
<?php

ob_end_flush();

?>

Guruno 2009-09-04 01:38:08

Answer 2

+1 A:

Would it be better to have all of my display functions return the HTML they generate, so that the main controller can just echo $page; or should the display files use raw HTML outside of PHP, which gets output as soon as it's read?

One of the advantages of php is that the processing is similar to the output:

So:

<h1> <?= $myHeading; ?> </h1>

Is more clear than:

echo "<h1>$myHeading</h1>";

An even more than:

echo heading1($myHeading); //heading1() being an hypothethical user defined function.

Based on that I consider that it is better to in the view to have HTML and and just print the appropriate dynamic fields using php.

In order to get finner control over the output you can use: ob_start as gurunu recommended.

You could of course use any of the several php MVC frameworks out there. My prefered one, now is: Solarphp

but Zend Framework and Cakephp could help you too.

And finally if you don't want to use any framework You could still use a pretty slim templating engine: phpSavant. That will save you a few headaches in the development of your view. th

elviejo 2009-09-04 01:55:45

but again, PHP Group recommends shorttags to be dropped. so think about using <?= and ?> again for you might need to change it near future.

thephpdeveloper 2009-09-05 15:13:08

Using one of the suggested frameworks (ZF, Solar) is probably a good course of action.

Jani Hartikainen 2009-09-05 15:41:31

Mauris Can you point to the "recommendation of short tags to be dropped". People recommend against using them because on some php installations they are disabled in php.iniHowever I like them in my views / templates. It is easier than writing: <?php echo $myHeaing; ?>on several places.

elviejo 2009-09-06 01:18:57

Answer 3

A:

First buffer everything. then replace tags using a parser at end of script.

<?php

$page_buffer = '';

function p($s){
   global $page_buffer;
   $page_buffer .= $s;
}

$page_buffer = str_replace(
     array('<$content$>','<$title$>'),
     array($pagecontent,$pagetitle),
     $page_buffer);

echo $page_buffer;

?>

Samstyle PHP Framework implements output buffering and View model this way

And did I mention about benefits of buffering your output in a variable before "echo-ing"? http://thephpcode.blogspot.com/2009/02/php-output-buffering.html

thephpdeveloper 2009-09-05 15:17:05

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