Web-Development

First and Last Entry on a Page using Modulus Remainder

: Category: Personal Home Page; 26 September 2011; Hits: 18333

So I know it's quite a long title but I'm not sure what I'll be searching next time. It has taken me a lot longer than I thought it would mostly out of frustration and the inability to know exactly what I'm looking for... always difficult. After a cup of tea the solution was glaringly obvious, just do a primary school mathematics table and it all makes sense (see my 10 mod table below).

This article is a quick note (so I never spend as long again) in PHP on how to determine when looping through a loop, which entry was first and which was last. This is incredibly useful for pagination.

: Category: Personal Home Page; 09 March 2011; Hits: 41968

Do you hate sites that do not have a search feature? I do. I think it defeats the purpose of cramming information endlessly in cyberspace.

So we want to give a search engine to our users. This sounds really simple, we could try:

$search_term_esc = AddSlashes($search_term);
$sql = "SELECT * FROM Content WHERE content_body LIKE '%$search_term_esc%'";

Great! Few problems though, multiple terms are not supported; quotation marks and apostrophes may be an issue;

: Category: Personal Home Page; 30 September 2010; Hits: 7941

Quick tip or note to self: How to get yesterday's date irrespective of date format or daylight savings time.

$today=date("Y-m-d");
$yesterday = date('Y-m-d', mktime(0, 0, 0, date("m") , date("d") - 1, date("Y")));

Outputting PHP files into different file formats

: Category: Personal Home Page; 12 February 2010; Hits: 11478

I'm beginning a list as I've just spent an age trying to get PHP output to create a text file. Then my client showed me how she then opens the text file in Excel, so I said we could get the script to do that instead.

PHP to TXT

header('Content-Type: text/plain; charset=utf-8');
header('Content-Disposition: attachment; filename=foo.txt');
echo 'contents of file';

PHP to XLS

$export_file = "my_name.xls"; 
ob_end_clean(); 
ini_set('zlib.output_compression','Off'); 
header('Pragma: public'); 
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); 
header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT'); 
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: pre-check=0, post-check=0, max-age=0');
header ("Pragma: no-cache"); 
header("Expires: 0"); 
header('Content-Transfer-Encoding: none'); 
header('Content-Type: application/vnd.ms-excel;'); 
header("Content-type: application/x-msexcel");  
header('Content-Disposition: attachment; filename="'.basename($export_file).'"');

Make bootstrap carousel responsive to swipe

: Category: Bootstrap; 14 December 2016; Hits: 16226

What?
A quick reminder on how to make the carousel in bootstrap compatible with touch devices like smartphones and tablets.

Why?
Feed back was that the user was unimpressed with the image slideshow. You have to tap on the left and right symbols...

How?
Some will suggest to load the jQueryMobile library but that started messing up the template layouts for me. I really like the solution (and think it should be voted best answer) put forward by Mark Shiraldi: