Mbinu __wakeup

Mbinu __wakeup ni mbinu ya kichawi katika PHP, ambayo inaitwa kiotomatiki wakati wa kutenganisha kitu. Inaruhusu kurekebisha rasilimali za kitu au kutekeleza vitendo vya ziada baada ya kutenganisha.

Syntax

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

Mfano

Mfano wa darasa lenye mbinu __wakeup, ambayo inarekebisha unganisho la hifadhidata:

<?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);
?>

Mfano

Mfano wa kurekebisha faili za muda baada ya kutenganisha:

<?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);
?>

Angalia pia

mbinu __sleep,
ambayo inaitwa kabla ya kuweka kitu kwa mpangilio
mbinu __construct,
ambayo inaitwa wakati wa kuunda kitu