Differences between php md5 and md5_file

Md5 ($ str) hash encryption for strings

Instance
*/
$ Str = "hello world"; // define a string
$ Result = md5 ($ str); // performs the encryption operation
Echo $ result; // output the converted result

// Md5_file ($ filepath) performs hash encryption on the file content

$ File = "test.txt"; // definition file
$ Result = md5_file ($ file); // executes the calculation operation.
Echo $ result; // output the calculated result

/*

Md5 hash of the md5_file () function compute file.

The md5 () function uses rsa Data Security, including the md5 packet excerpt algorithm.

If the calculation succeeds, the calculated md5 hash is returned. If the calculation fails, false is returned.