1/5/2024 0 Comments Base64 decode linux$string – This parameter is required and is where you will pass in your MIME Base64 encoded string.The first is required, and the second is optional. This function has two arguments that you can use. base64_decode(string $string, bool $strict = false): string|false This shows the two parameters alongside the data return type. This function is what will take a Base64 string and convert it back to its original data.īelow you can see the definition of the function. This definition will show you the various parameters and the return type of this function. Definition of PHP’s base64_decode() Functionīefore we proceed, let us explore the definition of base64_decode() within PHP. PHP provides a function called base64_decode() that will take an encoded string and decode it back into its original data. Now that you know how to encode a string in the MIME-Base64 format in PHP let us explore how to decode the string. cGlteWxpZmV1cC5jb20= The base64_decode() Function in PHP This is because the MIME-Base64 standard uses the equals sign for padding as the length must always be a multiple of three. You will immediately notice that the resulting string is longer and ends with an equal sign. īelow, you can see how PHP encoded our “ ” string in the Base64 format. The returned Base64 string will be output thanks to us using the echo statement. We then use PHP’s base64_encode() function, passing in the “ $website” variable into it’s single parameter. We will keep this example relatively straightforward by passing a string straight into the function.Īt the top of this example, we will create a variable called “ $website” and assign it the string “ “. Now that we know the definition of the base64_encode() function in PHP, we can explore an example of how you would use this in your code. You will note that this string will consume more data and be longer than the original data.ĭue to the way Base64 works, this will consume roughly 33% more data than the original string, so be careful if you are dealing with a large source string. PHP will return a Base64-encoded version of your string. That parameter is the string you want to encode to the MIME Base64 standard. This function only requires a single parameter. This definition shows the parameters expected data type and the functions return type. This function is very straightforward as it only sports a singular parameter that expects a string.īelow you can see how base64_encode() is defined. Knowing how it is defined will make it easier for you to understand what sort of data you will be doing with. Let us show you how exactly the base64_encode() function is defined within PHP. Definition of PHP’s base64_encode() Function To achieve, this you will be learning all about the base64_encode() function. In this section, we will be showing you how to encode a string in the Base64 format in PHP. It is designed to be efficiently encoded and decoded on the fly and offers no protection. Please note that Base64 should never be used for security. In particular we will be touching on the base64_encode() and base64_decode() PHP functions. Over the next couple of sections, we will show you how you can encode and decode using Base64 in PHP. For example, in a previous comment system we were using it encoded SVG data into Base64 which was then interpret by the web browser back into its original data. There many other uses for Base64 encoding and decoding in PHP. Something like an image would be encoded in this format during transit and then decoded back to its original data by the receiving client. This standard was originally designed to help send binary data in text-based protocols like emails. PHP utilizes the MIME Base64 standard for its encoding. This tutorial will show you how to encode and decode a string in the base64 format in PHP.īase64 is a useful encoding type that allows you to encode a string in PHP that you can easily decode.
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