Multiple sites with Apache Server on different ports or domains
Sometimes people become amazed with an awesome feature of his new shiny tool, and never discover that it was already there for years in his old boring tool. A g...
Author: Anis Ahmad
Track or count online users in Firebase webapp
It’s a pretty common need to track online users of an web application. Sometimes for counting total online users, sometimes by isolated space, e.g., by ch...
BootstrapFileField – File input with preview and restrictions, no ajax
The file input is one of those HTML elements that are complex to style with CSS. As a result, now a days we see many ajax uploader plugins (e,g, DropZone) that ...
From Oracle TO_DATE to MySQL STR_TO_DATE
I had to import a huge Oracle database dump into MySQL database today. One major problem in doing this was, TO_DATE function of Oracle (used to convert string t...
Symfony2 Forms with Bootstrap 3 : Datepicker for date field
Symfony2 Forms have a rich set of field types and many defined widgets for rendering fields. But still we may need a different representation of a field. For ex...
Symfony Forms with Bootstrap 3 : Rendering a help block
It’s a pretty common need to show a help text with a form filed. Where we’ll tell the user about purpose of this field or some validation rules. Alt...
CSS calc not working LESS
Sometimes LESS screws an expression inside calc(). To avoid this situation, I do a very basic trick. Let’s say I want to implement the following to keep a...
Solving PHP error – Allowed memory size of xxxx bytes exhausted
If you see the following error while executing a php script, that means the execution is trying to use more memory then the maximum amount of memory a script ma...
Building Large Scale Javascript Application
Digital World 2014 was a 4 day (4th – 7th June, 2014) ICT event at Bangladesh. It was organized by ICT Division of Telecom and IT Ministry of the country....
Converting Doctrine MongoDB Document toJSON or toArray
This is a common need to convert Doctrine ODM Documents to simpler format. Generally we need to convert them to Array or serialized as JSON. And there are many ...