Is this a bug in PHP? [duplicate]

Question

Possible Duplicate:
php array behaving strangely with key value 07 & 08

I've found something weird in PHP, if I use numeric arrays the 8th array gets ignored, here when I put 'Cherry' into $fruit[08], php seams to step over it.

What's going on ? Is this a bug or something else.

<pre>
<?php

$fruit[01] = "Apples";
$fruit[02] = "Pears";
$fruit[03] = "Bananas";
$fruit[04] = "Grape";
$fruit[05] = "Orange";
$fruit[06] = "Peach";
$fruit[07] = "Lemon";
$fruit[08] = "Cherry";
$fruit[09] = "Mango";

print_r($fruit);

?>
</pre>

Output:

Array
(
    [1] => Apples
    [2] => Pears
    [3] => Bananas
    [4] => Grape
    [5] => Orange
    [6] => Peach
    [7] => Lemon
    [0] => Mango
)

Answer 1

Your indices are being treated as octal numbers because of the leading zeroes.

08 and 09 will both be evaluated as zero, so your last entry ("Mango") ends up in array index 0.

Answer 2

08 is treated as octal.

Don't use leading zeros.

For that matter, don't use explicit indices for creating arrays:

$fruit = array(
           "Apples",
           "Pears",
           etc
         );

(or for PHP 5.4 and newer):

$fruit = [
           "Apples",
           "Pears",
           etc
         ];