[ 0 => [ 0 => 'foo', 1 => 5, 2 => 10, 3 => 'bar', ], 1 => 'banana',]
[ 'result' => [ 'array' => [ 'foo' => 'banana', 5 => 'banana', 10 => 'banana', 'bar' => 'banana', ], ], 'php_version' => '7.1.33 Linux x86_64',]