PHP - serialize

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Metóda - serialize

(PHP 4, PHP 5, PHP 7)

The function generates a textual representation of a value which is suitable to be stored. It handles all data types except the resource type. It's possible to recreate the original value from the serialized value later.

Procedurálne

• function serialize (mixed $value) : string

Parametre

Názov	Dátový typ	Predvolená hodnota	Popis
$value	mixed		The value to be serialized.

Mávratovej hodnoty

Vracia: string

Returns a string representation of a value which is suitable to be stored.

Note: When saving this value into the database , it's better to use the BLOB type rather than CHAR or TEXT.

Príklady

Serialization and deserialization of class instance:

<?php
class Dog
{
    private $name;

    public function __construct($name)
    {
        $this->name = $name;
    }

    public function sayHello()
    {
        echo 'Woof woof! I am ' . $this->name . '!';
    }
}

$dog = new Dog('Bad');

$packed = serialize($dog);
echo $packed . "\n";

$unpacked = unserialize($packed);
$unpacked->sayHello();

Serialization of array:

$animals = ['Dog', 'Cat', 'Rabbit', 'Mouse'];
echo serialize($animals);