Asad Abbas

Secure download-upload script in Php

2008-12-26T23:35:00.018+05:00

Recently I have written a blog post on how to insert a file in mysql database as a blob data type. In this post I will explain how you can upload user submitted file securely to your server and make it available for download. I personally prefer this method as work load on a file system will be better than on a database system. But we'll still be using a mysql database to record details of an

Free web hosts with php mail() function enabled

2008-12-26T00:03:00.014+05:00

It is difficult to find a web host that is free and support php's mail() function. Following are my two favorite web hosts that freely supports php's mail() function.1)FreeWebHostingArea.comFeatures apart from mail include :Quad-processor server with 4GB RAMUnmetered traffic500 MB WebspacePHP 5 (v5.2.4) with GD2 library, Zend Optimizer, php curl, php magickwand (support for ImageMagick 6.3), php

Ajax is so simple using JQuery

2008-12-23T06:09:00.047+05:00

I recently started using JQuery and found that it has made JavaScript so simple and easy. For those of you who use Ajax simply , first you have to check if XmlHttpRequest object is available. If not then u try some ActiveX object untill to attain cross browser compatibility. This is all a very tiresome and repitative work.JQuery on the other hand handles all the issue and make our script cross

Inserting Binary data into MySQL database using Php

2008-12-23T05:10:00.013+05:00

A simple script which can help to store any binary data to you MySQL database. You can add any type of binary data eg word document, Excel spreadsheet, PDF file , an image or a video in through it. I will use MySQL's LONGBLOB data type. it support at most a data of 4GB.schemaCREATE TABLE `mydata` (`id` INT UNSIGNED NOT NULL AUTO_INCREMENT, `data` LONGBLOB NOT NULL, `fname` VARCHAR(255) NOT NULL,

Prevent your Php MySQL scripts from SQL injections

2008-12-22T07:01:00.010+05:00

If your site uses data from user and operates its database functionalities over it then you are not safe. SQL injections are the most comman type of attack which a site faces. I would like to mention some common types of attacks and how to save your script from these attacks.Escape your input stringsConsider a query"select * from users where username = '{$userid}' "input : $userid = " 1'; delete

Victory at Combat 08,PAF KIET in a Programming Competition !!!!!!!

2008-09-08T22:31:00.010+06:00

This is the first blog post by me … I was never a blogger but this event is worth writing and remembering so I thought why not a blog post for it .So let me start from the beginning. Me, Amir Ali and Abeer are a group and we use to participate in different programming competitions. So as usual we also participated in this event together.It was 23rd of August 2008. In the morning we started out

Helloo World

2008-09-06T00:29:00.003+06:00

Hello world ... This is my very own blog and its this is my first post ... !!!