Ambigous PHP error message

Question

Having this:

...
private $responseBuffer = array();
...

and within this line:

$lm = end(array_values($this->responseBuffer));

I get

Error: Only variables should be passed by reference (2048)

as both end and array_values are built in and do not have a call-by-referenceI'm puzzled, any one an idea?

(purpose: get the latest value out of $responseBuffer)

You need a variable - `$foo = array_values($this->responseBuffer); $lm = end($foo);`, `end`'s first arg is by ref — Clive, Jun 13 '15 at 09:40
Here's an explanation as to why you need to assign `array_values` to a variable before passing to `end` - http://stackoverflow.com/a/4636183/1426354 — olimortimer, Jun 13 '15 at 09:42

score 5 · Answer 1 · answered Jun 13 '15 at 09:41

5

end function receives the arguement by reference, do like this:

$var = array_values($this->responseBuffer);
$lm = end($var);

answered Jun 13 '15 at 09:41

xurshid29

1

Yepp, thanks, just read the manual, as always RTFM ... – Axel Amthor Jun 13 '15 at 09:45

1 Answers1