php strange behaviour accessing array

Question

I have a function returning an array, called curPageURL. On my local apache, I accessed the return-value of the Page like this: $pageUrl = explode('?',curPageURL())[0]; it worked pretty fine. But on live it didn't work. It took me a lot of time to figure out, that the error was accessing the array.

This solved the issue:

$pageUrl = explode('?',curPageURL());
$pageURL = pageURL[0];


function curPageURL() {
        $pageURL = 'http';
        if (isset($_SERVER["HTTPS"]) && $_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
        $pageURL .= "://";
        if ($_SERVER["SERVER_PORT"] != "80") {
            $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
        } else {
            $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
        }
        return $pageURL;
    }

Can anybody explain why?
Is it forbidden to access array index directly by function's return value? If so, Why did it worked at my localhost, but not at my live host?

yeah my hoster is at php 5.3 - that explains it all and one hour wasted time :/ thanks — Karl Adler
– Karl Adler, Commented Apr 29, 2013 at 7:38

xdazz · Accepted Answer · 2013-04-29 07:32:19Z

4

$pageUrl = explode('?',curPageURL())[0]; only available when php version >= 5.4

As of PHP 5.4 it is possible to array dereference the result of a function or method call directly. Before it was only possible using a temporary variable.

Your online host is below that version.

answered Apr 29, 2013 at 7:32

xdazz

161k38 gold badges255 silver badges278 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Ja͢ck · Accepted Answer · 2013-04-29 07:33:09Z

4

You would need current() until you have PHP 5.4 that supports array dereferencing on function results.

$pageUrl = current(explode('?',curPageURL()));

answered Apr 29, 2013 at 7:33

Ja͢ck

174k39 gold badges269 silver badges316 bronze badges

Collectives™ on Stack Overflow

php strange behaviour accessing array

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related