# Storing objects in PHP session

PHPServer Side ProgrammingProgramming

The serialize() function in PHP can be used before storing the object, and the unserialize() function can be called when the object needs to be retrieved from the session.

The function converts a storable representation of a specific value into a sequence of bits. This is done so that the data can be stored in a file, a memory buffer or can be transferred over a network.

Using the serialize function to store the object −

session_start();
echo $data; ?> ## Output This will produce the following output − a:3:{i:0;s:3:"abc";i:1;s:5:"defgh";i:2;s:6:"ijkxyz";} Using the unserialize function to retrieve the object − session_start();$object = unserialize($_SESSION['sample']); As usual, the session is begun using the ‘session_start’ function and the object that was created previously, that was serialized by assigning it to the _SESSION variable is unserialized using the ‘unserialize’ function − ## Example Live Demo <?php$data = serialize(array("abc", "defgh", "ijkxuz"));
echo $data . "<br>";$test = unserialize($data); var_dump($test);
?>

## Output

This will produce the following output −

a:3:{i:0;s:3:"abc";i:1;s:5:"defgh";i:2;s:6:"ijkxuz";}
array(3) { [0]=> string(3) "abc" [1]=> string(5) "defgh" [2]=> string(6) "ijkxuz" }
Published on 09-Apr-2020 14:53:41