PHP: echoing array only returns the word array instead of its content

Question

I am very new to PHP and hope you can help me with this.

I am fetching some data from SQL and try to create an array that I want to echo on a page.

When I

Answer 1

An array must be printed using:

print_r($arrayValue)

you can keep the print value also (EDITED):

$x = print_r($arrayValue, true)

but I prefer the json way if it's for logging purposes:

echo json_encode($arrayValue)

keeping in mind every value must be json-serializable.

...

Doing a plain echo $arrayValue will always print "Array" word without any content. Yes, it's a bit unintuitive (since other languages like python don't behave like that) but it is what it is.