Archive for November, 2009

Hereis Document for PHP: Great for Generation of HTML

November 19th, 2009 No comments

The great thing about hereis documents is that in most cases you don't have to backslash quotes, your "html" thus retains its visibility
echo <<<__HTML__

<li><a href=”$pressdir$file”>$file</a>

$html.= <<<__HTML__
<li><a href=”$pressdir$file”>$file</a>

return <<<__HTML__
<li><a href=”$pressdir$file”>$file</a>

it can also cope with arrays if you use the following syntax ${my_array[‘postcode’]}

return <<<__HTML__
<li><a href=”$multimap_url${my_array[‘postcode’]}”>${my_array[‘postcode’]}</a>

I see so much ugly tangled php/javascript/html/css code which could be tidied up with the PHP Hereis Document

Categories: PHP Tags:

Ubuntu 9.10 Karmic Koala them Immediately Update

November 14th, 2009 No comments

My daughter upgraded her PC from 9.04 to 9.10 independently. Only hiccup it lost the Windows Network Printer however I Googled a bit and found to you needed to upgrade Samba if your Printer was on a Windows 7 PC (our case), so I went to System->Administration->Update Manager. There was a whole bunch of packages in there I selected all of them and did the update. I was then able to Find and Add the Network Printer via the Samba option.

Ubuntu seems to be bathed in clarity and elegance in comparison with Windows even the much vaunted Windows 7. I think this is because Microsoft is a large corporation, I have worked for many years for such organizations where the engineers would find their choices and suggestions overridden by non-technical managers.

Categories: ubuntu Tags:

How to Design a Database Driven PHP Page

November 11th, 2009 No comments

Design a Database Driven PHP Page

Many PHP pages turn into a mess because the PHP code is embedded into the HTML and. Over time this gets more and more tangled as the requirements change.

What is required is to make all the necessary database queries and all the manipulation of the data BEFORE you reach the first tag.

All that should appear in the HTML are the various php echos to output the dynamic parts of the page.

So here is the structure of a PHP page

query database
insert data from queries into php arrays (hashs)
General functions
Main section call functions, which manipulate the data to get that required by the dynamic web page
html section
Categories: PHP Tags: