Penggunaan fungsi FILEBASE64 pada PHP

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The base64_encode() function is an inbuilt function in PHP which is used to convert any data to base64 encoding. In order to convert an image into base64 encoding firstly need to get the contents of file. This can be done with the help of file_get_contents() function of PHP. Then pass this raw data to base64_encode() function to encode.

Required Function:

• base64_encode() Function The base64_encode() function is an inbuilt function in PHP which is used to Encodes data with MIME base64. MIME (Multipurpose Internet Mail Extensions) base64 is used to encode the string in base64. The base64_encoded data takes 33% more space then original data.
• file_get_contents() Function The file_get_contents() function in PHP is an inbuilt function which is used to read a file into a string. The function uses memory mapping techniques which are supported by the server and thus enhances the performances making it a preferred way of reading contents of a file.

Input Image:

Program:

Output:

iVBORw0KGgoAAAANSUhEUgAAApsAAAC4CAYAAACsNSfVAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJ
cEhZcwAADsQAAA7EAZUrDhsAAAAZdEVYdFNvZnR3YXJdhfdsglgklAEFkb2JlIEltYWdlUmVhZHlxyWqwrwtwefd
...
TeUsalQKBQKhUKhsBvK2FQoFAqFQqFQ2A1lbCoUCoVCoVAo7IYyNhUKhUKhUCgUdkMZmwqFQKBQKO0H0fxpZ1bfc

Reference:

• http://php.net/manual/en/function.base64-encode.php
• http://php.net/manual/en/function.file-get-contents.php

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»filebase64 Function

filebase64 reads the contents of a file at the given path and returns them as a base64-encoded string.

The result is a Base64 representation of the raw bytes in the given file. Strings in the Terraform language are sequences of Unicode characters, so Base64 is the standard way to represent raw binary data that cannot be interpreted as Unicode characters. Resource types that operate on binary data will accept this data encoded in Base64, thus avoiding the need to decode the result of this function.

Terraform uses the "standard" Base64 alphabet as defined in RFC 4648 section 4.

This function can be used only with functions that already exist as static files on disk at the beginning of a Terraform run. Language functions do not participate in the dependency graph, so this function cannot be used with files that are generated dynamically during a Terraform operation.

»Examples

> filebase64("${path.module}/hello.txt")
SGVsbG8gV29ybGQ=

• file also reads the contents of a given file, but interprets the data as UTF-8 text and returns the result directly as a string, without any further encoding.
• base64decode can decode a Base64 string representing bytes in UTF-8, but in practice base64decode(filebase64(...)) is equivalent to the shorter expression file(...).