Display the drop-down list

Test of array_product()

Example #1 : test success
Example #2 : test success
Example #1
$input = [
  
=> [
    
=> 2,
    
=> 4,
    
=> 6,
    
=> 8,
  ],
]
$expected_output = $test_output
$test_output = [
  
'result' => [
    
'number' => 384,
  ],
  
'php_version' => '7.1.26 Linux x86_64',
]
Example #2
$input = [
  
=> [
  ],
]
$expected_output = $test_output
$test_output = [
  
'result' => [
    
'number' => 1,
  ],
  
'php_version' => '7.1.26 Linux x86_64',
]