A common requirement when designing a site is the ability to update the layout and HTML of the site, without having to know any PHP (and therefore not deleting that code you spent hours writing). The other advantage of such as system is that PHP and HTML code can be kept entirely seperate, making for far more logical HTML and PHP coding. There are a number of ways to do this, and this tutorial covers just one method, with 2 storage options.
Library tutorials & articles
Implementing a template based website
By James Crowley, published on 24 Sep 2001
Introduction
James first started this website when learning Visual Basic back in 1999 whilst studying his GCSEs. The site grew steadily over the years while being run as a hobby - to a regular monthly audience ...
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This thread is for discussions of Implementing a template based website.
How well could you integrate this into ASP?
I am working on an ASP project and would love to use something to this effect. Could you make another tutorial on how to do this in ASP. I am not to good at converting things to ASP quite yet, and I have only created 3 things in ASP.
Anything would help.
Conversion of VBScript ASP isn't as easy, as it doesn't currently have an equivilant of the eval statement.... using JScript in an ASP file might well let you do that (I've never used it), in which case it should be fairly easy....
So is it not easy at all but sort of possible?
I am very good with HTML, PHP, and some others, but I am just now starting ASP. I got tired of SQL and moving on to some experimenting with ASP and OBDC.
I have read the article and kinda understand. But how would you create the template using MS Access 97.
btw, there is a misunderstanding with "resultsbit" instead of "resultbit". Anyways, it's quite nice
Thanks for the tip.
Happy Programs
I find this article very interesting, but I don't succeed in making it working with an MS Access database and would be glad for any help or information how to do it.
Stephan Wölfel
stw@freesurf.fr
<html>
<head>
<title>$pagetitle</title>
<link rel="stylesheet" type="text/css" href="../css/main.css">
<script language="JavaScript" src="../scripts/global.js" type="text/javascript"></script>
</head>
<body bgcolor=#470848 topmargin="0" leftmargin="0" marginheight="0" marginwidth="0" text=#D5D3D3>
<table border=0 cellpadding=0 cellspacing=0 width="100%" height=100%>
<tr height=90>
<td width=146 align=center><img src="../images/bigbullet1.jpg" width=91 height=90></td>
<td align=center><img src="../images/logo.gif" width="456" height="39"></td>
</tr>
<tr><td>
<table background="../images/menucenter.jpg" cellpadding=0 cellspacing=0 border=0 height=100%>
<tr><td class=bg><img src="../images/menutop.jpg"></td></tr>
$pagemenu
<tr><td height=99% valign=bottom><img src="../images/menubottom.jpg"></td></tr>
</table>
</td>
<td valign=top>
<center><img src="../images/line2.jpg" width=355 height=10><br>$pageheading</center><br>
$pagecontent
</td></tr>
</table>
</body>
</html>
The PHP variable, shown in bold face, must be defined before calling the template. Below is a typical page I would use with this template.
<?php
require "../php/global.inc";
require "../php/about-menu.inc";
$pagetitle = "About My Site";
$pageheading="<h3>Please choose a area you would like to learn about.</h3>";
$pagecontent = "";
$pagemenu="";
for ($i=0; $i < count($menunames); $i++) {
eval("\$pagemenu .= \"".gettemplate("menu")."\";");
}
eval("echo \"".gettemplate("main")."\";");
?>
The require statements import function unigue to my site. The point here is to show that I had to make sure that all the vairable I use in the template are defined. I also found that it works best if you give any variables you use in the templete to an empty string at the beginning of the script. It will take of some headaches later(trust me).
I hope this helps. The example I have shown works on my system. If you have problems getting it working for your self, email me and I would be happy to help. My address is defiantapp_s@omnitelcom.com
Happy Programming
Defiant
P.S. Sorry for the delay on posting a reply, been pritty busy. I will try to keep a closer eye in the future.
eval("\$resultbits .= \"".gettemplate("ResultsBit")."\";");
The operator underlined above takes to output of the gettemplate function and adds it to the $resultbits variable. However, in the script in the example does not give $resultbits a value before this eval statement, which causes the undefined error.
To solve this probelm, simple set the $resultbits variable to an empty string at the beginning of the script usein the line below:
$resultbits="";
This should solve the undefined variable error.
As for the different spelling you mentioned, I beleive it is just a typing error.
Hope this helps
Happy Programming
Defiant
I'm having a really hard time understanding how this works and I am not able to test it since I don't have a mysql server setup on my computer. Does anyone have an example they could show me that doesn't involve connecting to a database?
This sample is great BUT have a cuople of errors.
The file test.php is missing "#include template.php";.
The file template.php presents a variable $name that must be repalced with $templatename.
If you solve this all will work fine.
$buffer = addslashes(get_include_contents('resultspage.htm'));
eval("echo \"".$buffer."\";");
function get_include_contents($filename) {
if (is_file($filename)) {
ob_start();
include $filename;
$contents = ob_get_contents();
ob_end_clean();
return $contents;
}
return false;
}
results page.htm:
....
<TD>{$output[num_responses]}</TD>
....