When we give permission to users to upload a file, then it is must to validate that file. And that validation is to get the extension of the file and check if the file extension is match with the related extesions or not. Here is a small function to get the file extesion with php.
Most of the websites and web-applications are developing in server scripting languages. And the GUI part are designed in jquery, css and html. For GUI designing purpose jquery is easy and light so that the website will open quickly.
We use jquery because it is the cross browser compatible, so that the GUI remain same in the modern browsers. Jquery also using to send back-end or to gathering the data from cross domain. In this example we use jquery for dynamic dependent select boxes so that the page will not refresh every time when the related data are loading.
This will works only for modern browsers such as Chrome(1.0), Firefox (4.0), Internet Explorer(10), Opera(10.5), Safari (3.2); It will not work for non-webkit browsers, means no scale and rotate effect is seen.
The example for the scale and rotate is here:
HTML
<div id="container"> <div id="selector" class="chkani"> <img src="player_play.png" /> </div> </div>
now the CSS codes:
Scale and rotate with webkit transition on mouse hoverRead More
When we design a website that time we are not sure about the page height means how much long or short our page. In most of the cases we are trying to fill the page with more and more content so that the footer of the page appear always on the bottom of the page. But in some case we don’t have enough content to represent to the visitors and in that case the footer looks weird that attached with the content.
There are many ways to boost up the performance of the website like css amalgamation with php, use of plugins, caching in your php scripts, optimize your images, database etc.
I am going to share one of the method i.e memcache which help us to optimize load on the database. Normally a request for a dynamic page triggers multiple db queries, processing of output, and finally formatting to display on browser. This process can eventually be slow on larger sites or slower servers.
Generally, we use an email address to know about unique visitors because email id is the unique address of a user. It is a must job to validate the user through its email address to make the users unique. Email validation is possible in any scripting language and in this post, we are going to talk about email validation with PHP and we will use the jQuery for the async task.