__wakeup metodi

__wakeup metodi PHPda sehrli metod bo'lib, ob'ekt deserializatsiya qilinganda avtomatik ravishda chaqiriladi. U ob'ekt resurslarini tiklash yoki deserializatsiyadan keyin qo'shimcha amallarni bajarish imkonini beradi.

Sintaksis

public function __wakeup(): void
{
	// kod
}

Misol

__wakeup metodiga ega bo'lgan klass misoli, u ma'lumotlar bazasi bilan ulanishni tiklaydi:

<?php
	class DatabaseConnection
	{
		private $connection;
		
		public function __construct()
		{
			$this->connect();
		}
		
		private function connect()
		{
			$this->connection = 'db_connected';
		}
		
		public function __sleep()
		{
			return [];
		}
		
		public function __wakeup()
		{
			$this->connect();
		}
	}
	
	$db = new DatabaseConnection();
	$serialized = serialize($db);
	$unserialized = unserialize($serialized);
?>

Misol

Deserializatsiyadan keyin vaqtincha fayllarni tiklash misoli:

<?php
	class TempFileHandler
	{
		private $tempFiles = [];
		
		public function addTempFile($file)
		{
			$this->tempFiles[] = $file;
		}
		
		public function __wakeup()
		{
			foreach ($this->tempFiles as $file) {
				if (file_exists($file)) {
					unlink($file);
				}
			}
			$this->tempFiles = [];
		}
	}
	
	$handler = new TempFileHandler();
	$handler->addTempFile('temp1.txt');
	$serialized = serialize($handler);
	$unserialized = unserialize($serialized);
?>

Shuningdek qarang

__sleep metodi,
ob'ket serializatsiya qilinishidan oldin chaqiriladi
__construct metodi,
ob'ekt yaratilganda chaqiriladi