[ 0 => 'MHASH_MD5', 1 => 'Hello world!', 2 => 'a grain of salt', 3 => 8,]
[ 'result' => [ 'string' => 'ZOә', 'hex' => '5a1a8717c74fd399', ], 'php_version' => '7.1.33 Linux x86_64',]