range function does not see $i

Question

I am trying to learn range and xrange functionality by plugging PHP.net code into a code generator. When I run the following code I am given the error:

unexpected '$i' (T_VARIABLE) on line 4

Here is the code:

function xrange($start, $limit, $step) {
    if ($start < $limit) {
        for ($i = $start; $i <= $limit; $i += $step) {
            yield $i;
        }
    } else {
        for ($i = $start; $i >= $limit; $i -= $step) {
            yield $i;
        }
    }
}


foreach (range(1, 9, 2) as $number) {
    echo "$number ";
}

Thanks in advnace for your insight!

The generator works with PHP 5. Is this the cause for the error? Though PHP.net states: (PHP 5 >= 5.5.0) http://www.php.net/manual/en/language.generators.overview.php — Willow, May 21 '13 at 16:29

moonwave99 · Accepted Answer · 2013-05-21T17:02:20.147

0

From Generators doc:

(PHP 5 >= 5.5.0)

So it won't work with PHP 5.4 or below.

If you want to try PHP 5.5 online, use codepad.viper-7.

edited May 21 '13 at 17:02

answered May 21 '13 at 16:39

moonwave99

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Ah, so that does not mean 5-5.5? – Willow May 21 '13 at 16:41
Got it! So the error is with my generator. Thanks for your help. =) – Willow May 21 '13 at 16:49
I'm usisng http://writecodeonline.com/php Any idea of one that uses 5.5 instead of 5? – Willow May 21 '13 at 16:55
1

Thanks! I would give you upvotes, but I don't have 15 points yet. So all I can do is say thanks. =) – Willow May 21 '13 at 17:16
@Willow no problem, glad to have been helpful. Consider accepting the answer at most ^^ – moonwave99 May 21 '13 at 17:22

range function does not see $i

1 Answers1