18
Dec
Detect if a function exists in Javascript It is comman practice we call a call back functions in our javascript application ,we know that calling a non existed javascript function triggers a error. In order to overcome these kind of errors we must check that function exists and call only if that exists. Generelly every [...]
9
Dec
How to draw a Circle using HTML 4, CSS2,Javascript ,jQuery here we learn how to draw a basic circle with HTML div, CSS2, jQuery . Basic concept behind this scenario is Maths . We must know some basic circle equation to find the x, y co ordintates of the cicle perimeter. any point on circle [...]
1
Dec
A basic template engine that seperates the business logic from display logic. The basic idea of this template system is to implement a light weight MVC patter.We use only two PHP functions ob_start(); ob_get_clean(); Advantages: With this php template system we can include nested templates also. since this php template system does directly php [...]
29
Nov
How to check users email address domain really exists? We know how spam bothers much on contact pages of web application,even we use captcha ,there will be manually generated spam. And we don’t know given email address is fake or real. Good thing is that we can check is given email address fake or not [...]
Tags: anti spam
24
Nov
How to find the user is idle or active on web page or its element. We know that user is active on our web page or any element of the web page when he performs following actions Mouse Moves Key board button presses (presse down or up) Mouse Wheel or Mouse Scrolls Mouse Down ( [...]
16
Nov
simple PHP curl function below example function is used to send the form data or post data to remote server . i have mentioned detailed explanation on comments. Code Download Code function curl($url, $method = ‘get’, $header = null, $postdata = null, $timeout = 60) { $s = curl_init(); // initialize curl handler curl_setopt($s,CURLOPT_URL, [...]
Tags: curl
23
May
Automatically append and prepend a php file to current script using htaccess It is best practice to add common file to every php script in our application ,such as libraries cleaning input variables from $_GET,$_POST,$_COOKIE,cleaning or modifying the output of the php script by providing plug in functionality. We know best example for this many [...]
Tags: htaccess
19
Apr
How to display mysql tables in given database using php we know that it common practice to list database tables in mysql related backup php scripts.we learn here how to display the tables in given mysql database. for that we need to select a database and create some test tables with below queries . CREATE [...]
Tags: mysql
18
Apr
How to display mysql table fields using PHP It is common to find the mysql table field names in the given table while creating dynamic models for our web applications.To continue this tutorial we have to create a test table. Below mysql query is used to create this test table. CREATE TABLE `testtable` ( `test_id` [...]
Tags: mysql
26
Mar
How to upload image file to remote server with PHP cURL In this example we learn how to upload static files to remote server using PHP cURL library. We must know following functionality before we continue this example PHP file upload functionality. cURL function reference. how to submit data to remote server with PHP cURL [...]