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This article mainly introduces the php file Hash how to use the relevant knowledge, the content is detailed and easy to understand, the operation is simple and fast, has a certain reference value, I believe that everyone after reading this php file Hash how to use the article will have a harvest, let's take a look at it.

Description

1. In many download stations, the Hash value of the downloaded file is provided for verification and comparison to determine whether the downloaded file is complete and the same. This is the application of file Hash.

2, that is, after extracting the contents of the file for Hash hashing, the summary of the information about the file is obtained. This set of features is, of course, perfectly supported in PHP.

Example

/ file HASH echo hash_file ('md5','. / create-phar.php'), PHP_EOL;echo md5_file ('. / create-phar.php'), PHP_EOL;// ba7833e3f6375c1101fb4f1d130cf3d3// ba7833e3f6375c1101fb4f1d130cf3d3 echo hash_hmac_file ('md5','. / create-phar.php', 'secret'), PHP_EOL;// 05d1f8eb7683e190340c04fc43eba9db on "how to use the php file Hash" this article is introduced here, thank you for reading! I believe you all have a certain understanding of the knowledge of "how to use the php document Hash". If you want to learn more, you are welcome to follow the industry information channel.

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