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Asked 3 years ago
9 Jun 2021
Views 290
jignesh

jignesh posted

why unserialize function always returns 1 in php ?

why unserialize function always returns 1 in php ?
hanuman

hanuman
answered Apr 26 '23 00:00

The unserialize() function in PHP returns false when it fails to unserialize the input string. However, if the input string contains a serialized value of the boolean true, then the unserialize () function returns true.

Therefore, if the unserialize() function is always returning 1, it means that the input string contains a serialized value of true.

Here's an example:



$data = 'b:1;';
$result = unserialize($data);
var_dump($result); // output: bool(true)

In the above example, the input string $data contains the serialized value of true (b:1;), and the unserialize () function returns true which is equivalent to 1 in boolean context.

If you want to check whether the unserialize() function was successful, you can check the return value against false:


$

data = 'invalid_serialized_data';
$result = unserialize($data);
if ($result === false) {
    // handle unserialize error
} else {
    // use $result
}
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