Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP hash_update() Function.
The PHP hash_update() function updates the given data with the hash context.
The PHP hash_update() function updates the given data with the hash context.
Syntax
Following below is the syntax to use this function -
hash_update(HashContext $context , string $data ): bool
Parameter Details
Sr.No | Parameter & Description |
---|---|
1 | HashContext context The hash context that you get using hash_init(). |
2 | data The data you want to mix with the hash context. |
Return Value
This built-in PHP functions returns true or false.
PHP Version
This built-in PHP function works from PHP version greater than 5.1.2.
Example1
Following example illustrates the usage of the built-in hash_update() function -
<?php $hash_context = hash_init('md5'); hash_update($hash_context, 'Testing php'); hash_update($hash_context, ' hash functions.'); echo hash_final($hash_context); ?>
Output
When the above code is executed, it will produce the following result -
e4310012c89a4b8479fd83694a2a3a31
Example2
Following example illustrates the usage of the built-in hash_update() function with the gost-crypto algo -
<?php $hash_context = hash_init('gost-crypto'); hash_update($hash_context, 'Hello World'); echo hash_final($hash_context); ?>
Output
When the above code is executed, it will produce the following result -
75ed15d84df84291c67fe07bf234ac69e92a9c2a378ee62f342af739e829eba9
Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial, we are going to be studying about the PHP hash_update_file() Function.
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