REST API is super new to me, so I apologize for all the questions. Your tutorial has come the closest to actually outputting anything, so that’s why I’m trying to dig into it to figure out what’s wrong. When I add the var_dump($responses), I get another error, from that same json URL: “array(1) { [0]=> NULL }
Warning: count(): Parameter must be an array or an object that implements Countable in /path/”

It seems that that error for count() started in 7.2 – which I think is newer than this tutorial.
Regardless, you can debug what you’re passing in count(). Try doing a var_dump() on the main array.

Something like: var_dump($responses) – right before the for loops where the count() is. One of the subarrays are likely to be the culprit.

You’re right – don’t put that line in, that was just for the tutorial.

Not sure how else to determine if the array is empty. The json URL is working fine for me, fwiw: https://www.pixie-cbl-staging.com/wp-json/wp/v2/retailers?malls=ham

Oh…hmmm…I hadn’t put that line above “$final = array()” thinking that it was just supposed to demonstrate what the result of $responses[$x] would be. When I put that line in, I get another error: “Parse error: syntax error, unexpected ‘,’, expecting ‘]'” Could it have to do with using a CPT in place of “post” for my curl_init url? I don’t think it does though, because I have also tried using just posts there instead, and I’m still getting the errors.

So judging from the warning, one of the arrays might be empty?

this line:

$responses[$response[0], $response[1], $response[2]]

Make sure that they contain items?

That line reads:
for($x=0;$x<count($responses[$i]);$x++){

Any ideas what could be going wrong here?