Could not get data from serialized array using unserialize function

Question

I have serialized data and I am using PHP unserialize function which is not working for me. I do not know what is wrong with this string. This is how my serialized data look like. My PHP knowledge is limited so I could not figure out the issue in this data. Can any one help me with this.

s:73:"a:5:{i:0;s:4:"8941";i:1;s:4:"8939";i:2;s:4:"8942";i:3;s:4:"8946";i:4;s:4:"8950";}";

@Remy I replaced 2 with 4. Can you tell me what else is wrong in this string ? — wplearner
– wplearner, Commented Aug 4, 2021 at 18:16

AbraCadaver · Accepted Answer · 2021-08-04 19:26:29Z

2

You have a serialized string that contains a serialized array. The string length is 81 not 73.

s:81:"characters in between the first and last quotes and in the example there are 81"

$string = 's:81:"a:5:{i:0;s:4:"8941";i:1;s:4:"8939";i:2;s:4:"8942";i:3;s:4:"8946";i:4;s:4:"8950";}";';
$result = unserialize($string);

Yields the serialized array:

a:5:{i:0;s:4:"8941";i:1;s:4:"8939";i:2;s:4:"8942";i:3;s:4:"8946";i:4;s:4:"8950";}

Unserialize that:

$array = unserialize($result);

Yields the array:

Array
(
    [0] => 8941
    [1] => 8939
    [2] => 8942
    [3] => 8946
    [4] => 8950
)

edited Aug 4, 2021 at 19:26

answered Aug 4, 2021 at 19:08

AbraCadaver

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1 Comment

wplearner Over a year ago

Thanks for your answer and time. What are the meaning of s here. How you calculated its value which is 81

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