unserialize function destroys the array

[FCC]

Hi guys,

I was hoping someone could help me with this. I have this code:

<?php
$string = <<<END
 a:29:{i:0;s:1:"2";i:1;s:1:"2";i:2;s:1:"1";i:3;s:1:"1";i:4;s:1:"1";i:5;s:1:"7";i:6;s:1:"2";i:7;s:1:"3";i:8;s:2:"17";i:9;s:1:"1";i:10;s:1:"2";i:11;s:1:"2";i:12;s:1:"1";i:13;s:1:"2";i:14;s:1:"2";i:15;s:2:"31";i:16;s:2:"32";i:17;s:2:"31";i:18;s:1:"2";i:19;s:2
END;
    echo $string;
    print_r(unserialize($string));
?>

It's a pretty simple thing. The $string value is some array that was serialized from another function. When I attempt to unserialize it, it prints nothing! It's like the array just disappeared...is there something wrong with the serialized string or something? I used the serialize function from php...so I can't imagine that causing it?

This is pretty frustrating

[Dan Grossman]

That's not a serialized array. It's missing the } at least. I didn't count if there are the right number of values in it.

[FCC]

Here is the original array:

$arr = array(
    0 => 2, 
    1 => 2, 
    2 => 1, 
    3 => 1,
    4 => 1, 
    5 => 7, 
    6 => 2, 
    7 => 3, 
    8 => 17, 
    9 => 1, 
    10 => 2, 
    11 => 2, 
    12 => 1, 
    13 => 2, 
    14 => 2, 
    15 => 31,
    16 => 32, 
    17 => 31, 
    18 => 2, 
    19 => 41, 
    20 => 42, 
    21 => 42, 
    22 => 43, 
    23 => 43, 
    24 => 43, 
    25 => 43, 
    26 => 44, 
    27 => 44, 
    28 => 2 
    );
$string = serialize($arr);
echo $string;
print_r(unserialize($string)); 

The funny thing is it works here...

[crmalibu]

This is not odd behavior. You simply cannot expect unserialize() to work on a string which you chopped the end off of.

In any case, the array you posted will not produce such a string when you serialize() it.

Compare them and see.

[Dan Grossman]

You're missing a large portion of the serialized array in your original code. It only has 20 values, where your array has 29.

[FCC]

Hmm. You are right. I just figured out what the problem was. The framework I was using was cutting off the serialized array string.

Thanks guys.