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@ 2015-11-10T22:40:39Z

<?php

final class SensitiveValue implements \Serializable
{
    private $value;
    /**
     * @param mixed $value
     */
    final public function __construct($value)
    {
        $this->value = $value;
    }
    /**
     * @return mixed
     */
    public function peek()
    {
        return $this->value;
    }
    /**
     * @return mixed
     */
    public function get()
    {
        $value = $this->value;
        $this->erase();
        return $value;
    }
    public function erase()
    {
        $this->value = null;
    }
    /**
     * {@inheritDoc}
     */
    public function serialize()
    {
        return;
    }
    /**
     * {@inheritDoc}
     */
    public function unserialize($serialized)
    {
    }
    /**
     * {@inheritDoc}
     */
    public function __toString()
    {
        return '';
    }
    /**
     * {@inheritDoc}
     */
    public function __clone()
    {
        throw new \Exception('It is not permitted to clone this object.');
    }
}

$value = new SensitiveValue(new \DateTime());
$time = $value->get();

echo $value->get()->format('Y-m-d');

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: SensitiveValue implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/Yk7kd on line 3 Fatal error: Uncaught Error: Call to a member function format() on null in /in/Yk7kd:65 Stack trace: #0 {main} thrown in /in/Yk7kd on line 65
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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