singelton.php

<?php

class UniqId {
	public static function get() {
		static $db = null;
		if ( $db == null ) {
			$db = new UniqId();
		}

		return $db;
	}

	private $_handle = null;

	private function __construct() {
		$this->_handle = uniqid();
	}

	public function handle() {
		return $this->_handle;
	}
}


print( "UniqId = " . UniqId::get()->handle() . "\n" );
print( "UniqId = " . UniqId::get()->handle() . "\n" );
print( "UniqId = " . UniqId::get()->handle() . "\n" );