PHP : Convert(cast) int to double/float
Problem :
You have an integer value and you need to convert it ot double or float value in PHP
….... read more
Golang : Check if item is in slice/array
Problem :
You need to see if an item is inside a slice or array.
Solution :
Golang does not….... read more
Golang : Delete duplicate items from a slice/array
Problem :
Fairly common question or task that a programmer will face from time to time. How to remove duplicate….... read more
Nginx : Password protect a directory/folder
Problem :
You want to protect a directory that only certain individuals with the right password can access via a….... read more
Golang : Upload and download file to/from AWS S3
One of my projects involved uploading tar gzipped files to AWS-S3 and use the CloudFront(CDN) for worldwide distribution.
The….... read more
Golang : Upload big file (larger than 100MB) to AWS S3 with multipart upload
At my previous tutorial on uploading file to Amazon Web Services S3, a reader asked if the method….... read more
Golang : Get YouTube playlist
A programmer productivity can be increased with a good playlist of music to get into the "zone" and I need….... read more
Golang : Upload/Receive file progress indicator
It is always nice to have a progress bar telling us how long to wait for the upload or download….... read more
Golang : List objects in AWS S3 bucket
For this tutorial, we will learn how to list a content of a AWS-S3 bucket.
The code below uses….... read more
Golang : Convert an image file to []byte
This is a quick tutorial on how to convert an image file to byte array. This question was originally posted….... read more
Golang : Capture stdout of a child process and act according to the result
Let say you want to execute a shell command of a child process in your main program and want to….... read more
PHP : Convert(cast) string to bigInt
Problem :
In PHP, you want to convert(cast) a string to become big integer value.
Solution :
Use GNU Multiple….... read more
PHP : Convert(cast) bigInt to string
Problem :
In PHP, you want to convert(cast) a big integer value to string for display.
Solution :
Use GNU….... read more
Golang : Convert(cast) int64 to string
Problem :
You want to convert(cast) a big integer value to string for display.
Solution :
Use strconv.FormatInt() function to….... read more
Golang : Convert(cast) bigint to string
Problem :
You want to convert(cast) a big integer value to string for display.
Solution :
Use big.Int.String() function to….... read more
Golang : Save(pipe) HTTP response into a file
Problem :
You want to save or pipe a website content via http.Get() function to a file for processing.
Solution….... read more
Golang : Login(Authenticate) with Facebook example
By today's Internet standard, if you want to create a website or app that allows user to login, it won't….... read more
Golang : Send email with attachment
In my previous tutorial on Go's send email and configure SMTP example, I left out a part where….... read more