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Test of random_bytes()

Example #1 : test not validated (platform dependant or random result etc.)
Example #1
$input = 5
test not validated (platform dependant or random result etc.)
$test_output = [
  
'result' => [
    
'string' => 'P',
    
'hex' => '06c8501694',
  ],
  
'php_version' => '7.1.13 Linux x86_64',
]